Email Services for Small SaaS Teams in 2026: Pricing, Setup and Deliverability
For a small SaaS team that wants product emails and marketing emails from one tool, Loops is the best starting pick in this guide. It is free to start on its Early Stage plan, and its Growing Audience plan costs $99 a month and includes transactional sends to users outside your audience. The rest of this page explains where that pick fits, where it does not, and when a separate sending path, a list-cleaning step or a cheaper tool makes more sense.
What a small SaaS team actually sends
Small SaaS teams usually send three kinds of email, and they run into trouble when they treat all three as one stream. Transactional email is anything the user expects to receive because they just did something: a sign-up confirmation, a password reset, a receipt, an invoice, a notice that a card payment failed. Lifecycle email is triggered by how a person uses the product. It includes the welcome sequence, the nudge sent to someone who signed up but never created a project, and the reminder that a trial ends in three days. Broadcast email is the newsletter, the product launch and the occasional announcement sent to everyone who opted in.
Each stream has different requirements. Transactional messages must arrive quickly and reliably, because a receipt that lands in spam produces a support ticket and sometimes a chargeback. Lifecycle messages depend on accurate event data. A trial reminder sent to someone who already upgraded is worse than no reminder, because it signals that nobody is paying attention. Broadcast messages depend on list quality and on how recipients react, because a large send to stale addresses damages the sender reputation that every other message relies on.
That shared reputation is the main reason to think about the stack as a whole. Mailbox providers judge sending domains and sending patterns, and a problem in one stream tends to show up in the others. A team that sends a neglected newsletter from the same domain that delivers password resets is taking an unnecessary risk with its login emails. Most of the decisions in this guide follow from that point: which tool carries which stream, which domains it sends from, and how the contact list is cleaned before anyone mails it.
Billing sits next to all of this. Your payment provider knows when a subscription starts, changes, lapses or fails, and your email system needs to know too. Stripe, Paddle and Lemon Squeezy each handle payments differently, and the way you connect them to email decides how much custom work your team carries. The billing section later on this page covers those options and the connectors that sit between them and your email tool.
The short answer, by situation
If you only read one part of this page, read the list below. Each line names a tool, the job it fits best and the price that applies on the vendor's pricing page. The comparison table, the tool sections and the cost tables give the details and the trade-offs.
- Product and marketing mail from one tool, small list: Loops. Free to start; Growing Audience is $99 a month.
- Lowest paid monthly entry price in this guide: Brevo Starter at $9 a month, starting at 5,000 emails a month. Brevo prices by sending volume, not by contact count.
- Free plan for a large list that mostly sends broadcasts: Kit, free for up to 10,000 subscribers. Visual automations and sequences start on the Creator plan.
- Free start with forms, a visual editor and light automation: MailerLite, free for up to 250 subscribers and 2,500 emails a month.
- Deep automation with a standard CRM in one place: ActiveCampaign, starting at $15 a month for 1,000 contacts.
- Event-heavy lists priced on people count: Drip, starting at $39 a month for 1 to 2,500 people, with unlimited sends in that band.
- A team already running sales in HubSpot CRM: HubSpot Marketing Hub, with free Marketing Hub tools and a Starter tier at $7 a month.
Comparison: what each tool is for and what it costs to start
Prices below are the plan prices shown on each vendor's pricing page, checked on 7 October 2026. Where a plan is billed monthly and annually, both figures appear. Plan names, contact bands and send allowances change over time, so confirm the terms on the pricing page before you sign up.
| Tool | Best for | Entry price (plan and billing) | Key limitation |
|---|---|---|---|
| Loops | Product-led SaaS that sends product and marketing mail from one contact database | Early Stage plan free; Growing Audience at $99 a month | The free plan caps sends at 4,000 in any rolling 30 days to your 1,000 newest contacts and adds a Loops footer |
| MailerLite | Budget-conscious teams that want a free start with forms and automations | Free for up to 250 subscribers and 2,500 emails a month; Comfort at $12 a month billed monthly or $10.80 billed annually on the 500-subscriber tier | Product-triggered transactional mail is not the centre of the offer, and prices for larger lists are on request |
| Brevo | Teams that plan around monthly send volume and may add SMS later | Free plan: 300 email sends a day for up to 100,000 contacts; Starter at $9 a month from 5,000 emails a month | The free plan is limited to 300 sends a day, and price follows email volume |
| Kit (formerly ConvertKit) | Founder-led SaaS and newsletter businesses with large lists | Free for up to 10,000 subscribers; Creator at $33 a month billed annually | Visual automations and email sequences start on the Creator plan |
| ActiveCampaign | Teams that want branching automation and a standard CRM together | Starter at $15 a month for 1,000 contacts; free trial, no free plan | Advanced segmentation sits on the Pro tier, and the interface takes longer to learn |
| Drip | E-commerce and event-heavy SaaS lists priced on the number of people | $39 a month for 1 to 2,500 people, with unlimited email sends in that band; 14-day trial | Larger bands include a fixed send allowance, such as 480,000 sends at 37,501 to 40,000 people |
| Mailchimp | Teams that want a familiar platform with many prebuilt connections | Free for up to 250 contacts and 500 sends a month; Standard at $20 a month on the 500-contact selector | The free plan is limited to 250 sends a day, and the price steps up at each contact band |
| Campaign Monitor | Teams that put email design and template control first | Lite at $13 a month billed monthly or $11.70 billed annually, on the 500-contact band | No ongoing free plan; a 30-day trial covers 500 contacts and 500 emails |
| AWeber | Small businesses that want a simple subscriber-tier plan | Lite at $15 a month for 500 subscribers and 5,000 sends a month | No ongoing free plan; a 14-day trial is offered |
| HubSpot Marketing Hub | Teams already using HubSpot CRM for pipeline and sales follow-up | Free Marketing Hub tools; Starter at $7 a month | Priced by plan with a per-seat element, so cost rises as more people need access |
Tool-by-tool notes for small SaaS teams
Each section covers what the tool does well for a small SaaS team, where it falls short, the price that applies and a link to the vendor's pricing page. The order follows the comparison table and is not a ranking.
Loops
Loops keeps one contact database for product messages and marketing campaigns. For a SaaS team that matters because the trigger for a welcome email, the trigger for a trial reminder and the audience for a product update all come from the same user record. The common failure is a marketing list that drifts away from the account database, so a cancelled customer keeps getting upgrade offers. A single contact store removes most of that drift. The Growing Audience plan includes unlimited sends to subscribers and transactional sends to users outside your audience, which covers the messages most SaaS products send.
Loops falls short on the free tier. The Early Stage plan allows up to 4,000 sends in any rolling 30-day period, sent to your 1,000 newest contacts, adds a Loops footer to emails and limits sending to 10 emails per second. That is enough to validate an idea. A product with a growing list or heavy notification volume will hit the cap, so count receipts and notifications against the allowance before you rely on the free plan. Check the pricing page for how the paid plan applies to your list size.
Price: free on the Early Stage plan; $99 a month on the Growing Audience plan.
Pricing page: loops.so/pricing
MailerLite
MailerLite suits a small team that wants a free start with a capable editor, subscriber forms and basic automations. The free plan covers up to 250 subscribers and 2,500 emails a month, which lets a pre-revenue product collect a waiting list and send early onboarding messages before spending anything. For a team of two or three people with no email specialist, the interface is easy to hand over to someone new.
The limitation for SaaS use is that product-triggered mail is not the centre of the offer. If your product needs transactional messages that fire on account events such as password resets or receipts, confirm how MailerLite handles them against your requirements before you commit. If it does not cover them, plan a separate sending path for those messages. The paid pricing shown on the vendor page starts at the 500-subscriber tier, so larger lists need a quote.
Price: Comfort at $12 a month billed monthly or $10.80 a month billed annually; Power at $25 a month billed monthly or $22.50 billed annually. Both apply to the 500-subscriber starting tier, and Power includes unlimited monthly emails.
Pricing page: mailerlite.com/pricing
Brevo
Brevo, formerly Sendinblue, is organised around monthly email volume rather than contact count. That can suit a SaaS with a large but quiet list that sends a predictable number of messages each month, because you pay for what you send rather than for every address you store. It also combines email with SMS and chat, which helps if you expect to add a text channel for payment reminders later.
The main trade-off is that the free plan limits sending to 300 emails a day, which is fine for testing but tight for a launch. Teams that send in bursts should model their busiest day, not the monthly average. Because price follows volume, a new campaign that raises sends can move you into a higher band, so keep a monthly volume forecast next to your billing dashboard. Brevo also lists a Professional tier for 150,000 to 10 million monthly sends and up to 2 million contacts, which is the route for larger senders.
Price: free for up to 100,000 contacts with 300 sends a day; Starter at $9 a month from 5,000 emails a month with no daily sending limit; Standard at $18 a month, which adds automation, A/B testing and advanced reports.
Pricing page: brevo.com/pricing
Kit (formerly ConvertKit)
Kit is strongest when the list is the business: a founder-led SaaS with a newsletter, a community or a course that drives sign-ups. The free plan covers up to 10,000 subscribers and includes unlimited email broadcasts, landing pages, forms and tagging. That is generous for a team that sends a weekly newsletter and does little automation. Tags instead of separate lists keep segmentation simple for a team without an operations person.
The limitation is that visual automations and email sequences start on the Creator plan. A SaaS team that wants a trial sequence or an onboarding drip will pay for Creator as soon as it needs one. The Pro plan adds deliverability reporting and unlimited users, which matters when several people share the account. Kit also offers a 14-day free trial on paid plans without a credit card, which is useful for testing sequences before committing.
Price: free for up to 10,000 subscribers; Creator at $33 a month billed annually; Pro at $66 a month billed annually.
Pricing page: kit.com/pricing
ActiveCampaign
ActiveCampaign is the choice when automation logic is complicated. Branching on user behaviour, waiting for a condition and handing a lead to a salesperson are all supported, and the Starter tier includes marketing automation and a standard CRM. For a SaaS team that wants sales follow-up next to lifecycle email, having both in one tool removes a sync job that often breaks quietly.
Costs rise with contact count and tier. Starter, Plus, Pro and Enterprise all start at 1,000 contacts, and the features that matter most to a growing SaaS, such as advanced segmentation, sit on the higher tiers. The interface also takes longer to learn than the simpler tools on this list. Budget an afternoon for setup and make sure a second person can maintain the automations after the first person moves on.
Price: Starter at $15 a month, Plus at $49 a month, Pro at $79 a month and Enterprise at $145 a month, each starting at 1,000 contacts. A free trial is available; there is no free plan.
Pricing page: activecampaign.com/pricing
Drip
Drip prices by the number of people in your database and includes unlimited email sends in the lower bands. That makes it easy to forecast for a SaaS or e-commerce business that sends a lot of behavioural email to a steady list. Workflows and dynamic segments are the core of the product, and up to 50 workflows are included in the lower bands, enough for a typical onboarding, win-back and post-purchase set.
The limitation is that larger bands come with a send allowance rather than unlimited sends. The 37,501 to 40,000 band includes 480,000 sends and the 45,001 to 50,000 band includes 600,000. If your list is large and engagement is high, count the messages you will send each month against those allowances before you move up a band. Drip offers a 14-day trial without a credit card.
Price: $39 a month for 1 to 2,500 people; $49 a month for 2,501 to 3,000 people; $89 a month for 4,501 to 5,000 people; $154 a month for 9,001 to 10,000 people. The lower bands include unlimited email sends.
Pricing page: drip.com/pricing
Mailchimp
Mailchimp is a familiar platform with many integrations, and many small teams already know how to use it. For a SaaS team that needs to connect email to a CRM, an analytics tool or a spreadsheet, the number of prebuilt connections saves setup time. The free plan lets you start with up to 250 contacts and 500 sends a month, which suits a beta list.
Costs step up at each contact band, and the free plan allows no more than 250 sends a day, which can slow a launch. A team that grows past 2,500 contacts should compare the next band with the alternatives in this guide before the next billing cycle. The 5,001 to 10,000 band includes up to 120,000 emails a month, so a heavy broadcast schedule can matter as much as the contact count.
Price: free for up to 250 contacts and 500 sends a month; Standard at $20 a month on the 500-contact selector, with up to 6,000 emails a month; $100 a month for 2,501 to 5,000 contacts; $135 a month for 5,001 to 10,000 contacts.
Pricing page: mailchimp.com/pricing
Campaign Monitor
Campaign Monitor fits a team that treats email design as part of the brand and has no designer on staff. The template library and editor make consistent layouts easy to reuse across welcome emails, product updates and newsletters. The Essentials plan includes unlimited sends within its contact band, which simplifies budgeting for a steady list.
The limitation is the absence of an ongoing free plan. The 30-day trial covers 500 contacts and 500 emails, so a pre-revenue team has to pay from the start for any long-running test. Automation is capable but not the deepest in this guide, so a team with complex branching may outgrow it. For a SaaS whose main need is a clean monthly update and a few lifecycle messages, the trade-off is reasonable.
Price: Lite at $13 a month billed monthly or $11.70 billed annually, with five times the subscriber emails per month; Essentials at $31 a month billed monthly or $27.90 billed annually, with unlimited sends; both on the 500-contact band. Premier at $171 a month billed monthly adds phone support.
Pricing page: campaignmonitor.com/pricing
AWeber
AWeber is a long-established provider aimed at small businesses that want a plain, predictable plan. Its tiers are easy to read: a subscriber band and a monthly send allowance. For a small SaaS that mainly sends a newsletter and a few automated messages, that simplicity cuts the number of decisions the team must make.
The send allowances are modest compared with the subscriber band, and there is no ongoing free plan. A 14-day trial is the only way to test before paying, so plan your evaluation inside that window. Check the send allowance against your planned volume as well as the subscriber count, because the plans are sized in both dimensions.
Price: Lite at $15 a month for 500 subscribers and 5,000 email sends a month; Plus at $30 a month for 500 subscribers and 6,000 sends a month.
Pricing page: aweber.com/pricing.htm
HubSpot Marketing Hub
HubSpot Marketing Hub is the natural choice for a SaaS team that already runs its pipeline in HubSpot CRM. Contacts, deals and email engagement sit in one record, so a salesperson can see that a prospect opened the onboarding series before a call. Free Marketing Hub tools are available, which lets a team start without paying for the platform.
The cost model is per plan with a per-seat element, so the bill grows as more people need access. If the team is not already on HubSpot CRM, moving the whole sales process into it is a far bigger decision than choosing an email tool, and it should be made on those terms rather than on the email features alone.
Price: Starter at $7 a month on the Marketing Hub listing; Professional at $800 a month; Enterprise at $3,600 a month. Free Marketing Hub tools are available.
Pricing page: hubspot.com/pricing/marketing
The billing and connector layer
Billing events are the part of SaaS email that most often needs custom work. A trial that converts, a plan that changes, a card that declines: each is an event in your payment provider that ought to produce an email, and sometimes should suppress one. How those events reach your email tool decides whether a small team spends an afternoon or a week on the job. There are three broad options, and most small teams combine two of them.
Payment providers as the source of truth
Stripe is a payments platform with per-transaction pricing for standard card processing. Its pricing page lists no permanent free plan and no monthly platform fee on standard payments pricing. Subscription changes and failed invoices can be sent to other tools, so the email platform receives the signal and decides what to send. Check Stripe's pricing page for the processing rates that apply to your country and payment methods.
Paddle acts as a merchant of record. It handles payment, tax and billing for you, with per-transaction pricing and no monthly platform fee shown on its pricing page. Because Paddle is the merchant of record, its billing events are the authority on subscription status. Your email tool should follow those events rather than keep its own copy of the plan, which avoids the classic problem of an email saying a plan is active after it has lapsed.
Lemon Squeezy is also a merchant-of-record model. Its Ecommerce payments tier shows no monthly fee, with fees charged per sale, and it includes subscriptions and tax handling. The same logic applies: let the billing provider's events drive the email triggers, and keep the email tool's contact fields as a mirror rather than a master.
Connectors that move events between tools
Make offers a free plan with 1,000 credits a month, no time limit, up to two active scenarios, scenarios that can run at most every 15 minutes and seven days of execution log storage. The Core plan is $10.59 a month billed monthly or $9 a month billed annually, which covers 10,000 credits a month. Each module action in a scenario uses one credit, so a webhook that updates a contact and then sends a message uses at least two credits per event.
Zapier offers a free plan with 100 tasks a month and two-step Zaps. Its Professional plan is $19.99 a month and adds multi-step Zaps and webhooks. Zapier is convenient for simple one-to-one syncs, such as adding a new paying customer to a list. For a high-volume billing stream, check task usage first, because each successful action step counts as a task.
Native integrations
Many email tools offer direct connections to payment or CRM platforms. A native connection usually has fewer moving parts than a connector, but it limits you to the events the tool supports. Before you pick a tool for billing-triggered mail, check the exact events it can receive. A connection that only syncs customer records is not the same as one that can fire a failed-payment message, and the difference matters the first time a card declines at midnight.
What it costs at realistic list sizes
Most small SaaS teams plan around three sizes: a launch list of about 1,000 contacts, a growing list of about 5,000 and a mature list of about 10,000. Each cell shows only a price that the vendor's pricing page states for that band. Where no stated price covers that size, the cell says pricing on request, and you should ask the vendor for a quote.
| Tool | About 1,000 contacts | About 5,000 contacts | About 10,000 contacts |
|---|---|---|---|
| Loops | Early Stage free (capped at 4,000 sends in a rolling 30 days); Growing Audience $99 a month | Growing Audience $99 a month | Growing Audience $99 a month |
| MailerLite | Pricing on request | Pricing on request | Pricing on request |
| Brevo | Starter from $9 a month at 5,000 emails a month | Starter from $9 a month at 5,000 emails a month; the volume you send decides the band | Starter from $9 a month at 5,000 emails a month; higher volume moves you to a larger plan |
| Kit | Free for up to 10,000 subscribers (broadcasts); Creator at $33 a month billed annually for sequences | Free for up to 10,000 subscribers (broadcasts); Creator at $33 a month billed annually for sequences | Free for up to 10,000 subscribers (broadcasts); Creator at $33 a month billed annually for sequences |
| ActiveCampaign | Starter at $15 a month | Pricing on request | Pricing on request |
| Drip | $39 a month (1 to 2,500 people) | $89 a month (4,501 to 5,000 people) | $154 a month (9,001 to 10,000 people) |
| Mailchimp | Pricing on request | $100 a month (2,501 to 5,000 contacts) | $135 a month (5,001 to 10,000 contacts) |
| Campaign Monitor | Lite $13 a month on the 500-contact band; larger bands on request | Pricing on request | Pricing on request |
| AWeber | Pricing on request beyond the 500-subscriber Lite plan | Pricing on request | Pricing on request |
| HubSpot Marketing Hub | Free Marketing Hub tools; Starter $7 a month | Pricing on request for contact-based sizing | Pricing on request for contact-based sizing |
Read the table with the cost model in mind. Drip and Mailchimp scale with contacts, so a list that doubles can cross into the next band. Brevo scales with sending volume, so a list of the same size that sends twice as often can cost more. Kit and Loops reward a team with a large list and light automation, because the free or low-cost plan covers more of the work.
Here is the arithmetic for a team that picks Drip at 5,000 contacts. The plan is $89 a month, so the annual cost is 12 × $89 = $1,068. If the list grows to 9,001 people, the plan moves to $154 a month and the annual cost becomes 12 × $154 = $1,848. Plan for that increase before the list crosses the band boundary, not after the invoice arrives.
For a team on Loops with a 10,000-contact list on the Growing Audience plan, the annual cost is 12 × $99 = $1,188. A team on Mailchimp at 10,000 contacts pays 12 × $135 = $1,620 a year on the 5,001 to 10,000 band. A team on Brevo's Starter plan at 5,000 emails a month pays 12 × $9 = $108 a year, but only if its sending volume stays in that range. These are the figures to compare when you build a three-year budget, because the gap between tools often grows larger than the gap in the first month.
Transactional and marketing infrastructure
There are two ways to build the sending side. The first is one platform for everything: product mail, lifecycle mail and broadcasts run from a single tool, and that tool owns the suppression list, the sending domain and the contact history. This is the simplest option for a team of two to five people, and Loops is built to support it. The second is two systems: a dedicated transactional path for account and billing mail, and a marketing platform for lifecycle and broadcasts. This option costs more to run but isolates the most important messages from marketing risk.
A small team should choose the first option unless one of three things is true. The product must send a large volume of account mail that cannot tolerate any delay. The team has a compliance reason to keep account messages separate. Or a marketing platform on the shortlist cannot send transactional mail that fires on account events. Each of these is a legitimate reason to run two systems, but it brings two sets of domains, two suppression lists and two places to look when a message goes missing. Write the decision down, because the second system is easy to forget until something breaks.
Whichever path you choose, decide how transactional and marketing sends are labelled and separated. A common pattern is one subdomain for product mail and another for marketing mail, each authenticated on its own. That way a poorly received newsletter does not drag the reputation of password resets and receipts down with it. Set this up before the first send, because changing sending domains later means building reputation again from the start.
Keep the suppression list in one place that every sender can read. Unsubscribes, hard bounces and complaints should flow into that list automatically. If a person opted out of the newsletter, they should not later receive a marketing message from a different tool because the second system did not know. Export the suppression list before any migration, because losing it is one of the most damaging errors a small team can make.
Deliverability and list verification
Deliverability is the reason the stack matters at all. A welcome email that never reaches a Gmail inbox, or a receipt that lands in a spam folder, loses trust that no email tool can restore by itself. For a small team, deliverability comes down to three habits: authenticating every sending domain, keeping the list clean, and sending in a pattern that does not look like a sudden blast from a new sender.
Authenticate every sending domain
Each sending domain should publish three DNS records. SPF lists the servers allowed to send for the domain. DKIM attaches a cryptographic signature to each message so receivers can confirm it was not altered in transit. DMARC tells receivers what to do when SPF or DKIM fail and where to send aggregate reports. Your email platform gives you the exact values to add. Publish them, wait for the platform to confirm them, and only then start sending at volume.
Large mailbox providers expect bulk senders to authenticate, so treat these records as a launch requirement, not an improvement for later. Start DMARC with a monitoring policy so you can see which sources send mail under your domain, including tools you forgot about, such as a form plugin or a billing app that sends its own receipts. Tighten the policy only after the reports show that every legitimate source passes.
Verify the list before you send
Invalid addresses cause hard bounces, and repeated bounces tell mailbox providers that a sender does not maintain its list. Email verification services check addresses before you mail them. ZeroBounce, NeverBounce and Kickbox are three services small teams use for this job. None of their prices appear in this guide, because the figures needed for a small SaaS list are not shown on the pricing pages used here, so request a quote or check each vendor's pricing page directly before you budget. Compare their approaches on the points that matter to you: how they handle catch-all domains, how fast they return results for an import, and whether they can run as a one-off clean or as a recurring check.
Verification is most useful at four points: when you first import a list, when a new source of addresses is added such as a webinar sign-up export, before a large campaign to an old list, and after a long gap since the last send. It does not replace list discipline. Remove hard bounces as they occur, stop mailing addresses that have not engaged in a long time, and never buy or scrape addresses to grow a list, because those addresses are the most likely to bounce and the most likely to be reported as spam.
Warm up new domains and senders
A new sending domain has no history. A large first send to the full list asks mailbox providers to trust a stranger. Begin with the most engaged contacts, such as people who opened a recent email or signed up in the last few weeks, and increase the volume over several sends. Most platforms let you schedule this manually. Keep the first sends modest, and let the volume rise only when bounce and complaint rates stay low.
Watch the signals
Look at bounce rate, complaint rate and unsubscribe rate after each campaign and after each new flow goes live. A rising complaint rate usually means the audience did not expect the message, which is a content or list problem rather than a technical one. Some tools report deliverability directly. Kit's Pro plan, for example, lists deliverability reporting among its features. Where your tool does not show these figures, check the sending domain in the mailbox providers' postmaster and sender tools if you have access to them.
Setup and migration checklist
The steps below apply whether you start fresh or move a list from another tool. Work through them in order, because several depend on the one before.
| Step | What to do | Done when |
|---|---|---|
| 1. Map your email types | List every transactional, lifecycle and broadcast message. Name an owner for each. | Each message has a named owner and a tool that sends it. |
| 2. Choose sending subdomains | Pick one subdomain for product mail and one for marketing mail, or follow your platform's recommended setup. | Each subdomain is written down with the tool that sends from it. |
| 3. Publish SPF, DKIM and DMARC | Copy the values from the platform into DNS, start DMARC in monitoring mode and wait for confirmation. | The platform shows the domain as authenticated. |
| 4. Export suppressions | Export unsubscribes, hard bounces and complaints from the old tool, if there is one. | The file is saved and checked before any import. |
| 5. Verify the contact list | Run the list through a verification service before import, and remove invalid addresses. | The import file contains only verified addresses or addresses you have deliberately kept. |
| 6. Import suppressions first | Load the suppression list before any contact who could receive mail. | Suppressed addresses cannot be mailed from the new tool. |
| 7. Connect billing events | Use a native integration or a connector such as Make or Zapier to send subscription and payment events to the email tool. | A test event from the billing provider produces the expected contact update. |
| 8. Build the core flows | Create the welcome, trial-ending and failed-payment flows, plus any onboarding sequence. | Each flow has been run with a test contact and its exit conditions are set. |
| 9. Send seed tests | Send each template to test inboxes at the major mailbox providers your users rely on. | Each template arrives in the inbox and renders correctly on mobile. |
| 10. Set a monthly review | Review bounces, complaints, unsubscribes and plan usage once a month. | The review is on the calendar with a named person responsible for it. |
How to choose: decision table
Start with the job, not the brand. Find the row that matches what your team needs most, then check the reason before you commit.
| If you need | Pick | Because |
|---|---|---|
| Product mail and marketing mail from one tool on a small list | Loops | The Early Stage plan is free to start, and Growing Audience at $99 a month includes transactional sends to users outside your audience. |
| The lowest paid monthly price in this guide | Brevo | Starter costs $9 a month from 5,000 emails a month, and pricing follows send volume rather than contacts. |
| A free plan for a large list that mostly sends broadcasts | Kit | The free plan covers up to 10,000 subscribers with unlimited broadcasts, but sequences need the Creator plan. |
| A free start with forms, a visual editor and a budget ceiling | MailerLite | The free plan covers up to 250 subscribers and 2,500 emails a month before any paid tier is needed. |
| Branching automation and a standard CRM in one place | ActiveCampaign | Starter at $15 a month for 1,000 contacts includes marketing automation and a standard CRM. |
| Event-heavy automation priced by people count | Drip | The 1 to 2,500 people band is $39 a month with unlimited sends and up to 50 workflows. |
| Sales follow-up and email engagement in one record | HubSpot Marketing Hub | Free Marketing Hub tools let you start, and the paid Starter plan is $7 a month on the plan listing. |
| Many prebuilt connections for a mixed stack | Mailchimp | The integration count is high, and the free plan covers up to 250 contacts for early testing. |
How to choose for your team
Begin by counting. Write down the number of contacts you have today, the number you expect in twelve months and the number of emails you send in a typical month, including product messages. Two numbers drive most of the cost in this guide. Contact count drives the price for Drip, Mailchimp, ActiveCampaign and Campaign Monitor. Monthly send volume drives the price for Brevo and the send allowances in Drip's larger bands and in AWeber. Some plans depend on both, so your forecast needs both figures.
Next, decide which streams need a home. If the product sends transactional mail that must fire on account events, confirm that the marketing tool supports those sends before you rely on it. If it does not, you will run two systems. The marketing tool then handles lifecycle and broadcast mail, and a dedicated transactional path handles the rest. Running two systems is not wrong, but it doubles the number of places to check when a message goes missing.
Third, look at who will operate the tool. A two-person SaaS team with no marketing specialist needs an interface a founder or developer can maintain in about twenty minutes a week. A team with a marketer who builds complicated branching flows can accept a steeper interface in exchange for depth. The most common reason teams move again within a year is that the tool they chose cannot be maintained by the person who has to run it.
Finally, price a realistic year, not a single month. Use the cost table, then add the plan you expect to need in six months. A free plan that turns into a paid plan in the middle of a launch is a different budget from a paid plan that stays flat until the next band. Include the cost of any billing connector and the cost of any extra seat if more than one person will log in. Compare the total with the cost of the time your team will spend on migration later, because a cheap tool that forces a move in eighteen months is not cheap.
Workflows that matter most for a SaaS small team
You do not need many flows at launch. The four below cover most of what a small SaaS needs at the start, and each depends on a clear trigger and a clear exit condition. The exit condition matters more than the message, because a flow that keeps going after the customer has already acted is the fastest way to lose their trust.
Trial ending
Trigger the flow a fixed number of days before the trial ends, using the trial end date from your billing provider or your product database. The exit condition matters most here. A user who upgrades must leave the flow at once, or they will receive a reminder to pay for a plan they already bought. Test the exit with a real test account that you upgrade in the middle of the flow.
Keep the number of messages small. Two or three messages across the final week are usually enough, and each should state the date the trial ends and the one action the user can take.
Failed payment
Trigger the flow from the payment failure event your billing provider sends. The message should say what happened, link to the page where the customer can update the card, and state when access changes if the payment is not fixed. Because this is a transactional-style message, send it from the authenticated transactional path and keep the tone factual. Do not promise a recovery rate or claim that a particular email will fix the problem, because it will not on its own.
The exit condition is a successful payment. Once the invoice is paid, stop the remaining reminders in the same event stream so the customer does not receive a warning after the problem is solved.
Onboarding for new sign-ups
Trigger on account creation. Build the sequence around the first useful action in your product, not around a calendar. If the user has completed that action, skip the message that asks them to do it. A three-message sequence over the first week is a sensible start for most small products, and each message should lead with a single step.
Use the exit condition to stop the sequence when the user reaches the activation event or unsubscribes. Review the flow every month against the activation numbers in your product, rather than against the opens and clicks the email tool reports.
Win-back for lapsed users
Trigger when a paying customer has not logged in for a set period, or when an account has been cancelled for a set period. The message should offer a clear reason to return, such as a feature they have not seen or a change they asked for, and it should stop after a small number of attempts. Remove people who do not respond from the marketing list, because continuing to mail them harms the sending reputation you rely on for every other message.
Pair the win-back flow with the verification step from earlier in this guide. A list that has not been mailed in months should be verified before the flow starts, so the flow does not send to dead addresses.
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Frequently Asked Questions
Should a small SaaS team use one tool for product emails and marketing emails?
For most teams of two to five people, yes. One tool means one contact store, one suppression list and one sending domain to maintain. Loops is the best starting pick for this approach, with the Growing Audience plan at $99 a month including transactional sends to users outside your audience. Split the streams only if a regulatory or delivery requirement makes it necessary.
Which email tool is cheapest for a SaaS with a list of about 5,000 contacts?
It depends on how you send. Drip's band for 4,501 to 5,000 people is $89 a month, and Mailchimp's band for 2,501 to 5,000 contacts is $100 a month. Brevo's Starter plan is $9 a month from 5,000 emails a month, which can be the lowest cost if your monthly volume stays in that range. Kit's free plan covers up to 10,000 subscribers for broadcasts, but sequences need the $33 a month Creator plan billed annually. Work out your monthly send volume before you compare.
Do I need an email verification service if my tool already checks addresses?
A tool that accepts a list may not check every address before it sends. An independent verification service such as ZeroBounce, NeverBounce or Kickbox checks addresses before they reach your sending system, and it is most useful when you import a list from a new source or mail an old list after a long gap. Pricing for each service is on request, so get a quote before you budget for a recurring check.
What DNS records do I need before sending from a new domain?
Publish SPF, DKIM and DMARC for every sending domain or subdomain. SPF lists the servers allowed to send, DKIM signs each message, and DMARC tells receivers how to handle failures and where to send reports. Start DMARC in a monitoring mode, confirm that every legitimate sender passes, and only then tighten the policy. Your email platform provides the exact values.
How should billing events reach the email tool?
Let the payment provider be the source of truth. Stripe, Paddle and Lemon Squeezy each send events that describe subscriptions and payments. Connect those events to your email tool through a native integration if it supports the events you need, or through a connector such as Make, which has a free plan with 1,000 credits a month, or Zapier, which has a free plan with 100 tasks a month. Check how many credits or tasks each event uses before you choose.
Is there a free option for a pre-revenue SaaS?
Several options have free plans. Loops has an Early Stage plan with up to 4,000 sends in a rolling 30 days. MailerLite covers up to 250 subscribers and 2,500 emails a month. Kit covers up to 10,000 subscribers for broadcasts. Mailchimp covers up to 250 contacts and 500 sends a month. Each free plan has a limit, so write down the limit that will matter first, which is usually the send cap or the subscriber cap, and plan the upgrade before the launch.
How often should a small team review its email setup?
Once a month is enough for most teams. Check bounce rate, complaint rate, unsubscribe rate and plan usage, and confirm that the suppression list is complete. Review the flows that trigger on billing events after any change to plans or prices, because a flow built for last quarter's plan names will quietly send the wrong message.