Resend Plus Marketing Email: When You Need More Than an Email API

Resend now has Automations as well as Broadcasts. Where lifecycle email still asks for more, whether to run one tool or two, and how Resend, Loops and Pombo compare.

The Pombo team · · Facts checked

Your app sends its verification email through Resend, and it has never given you trouble. Then someone asks for a welcome sequence, a nudge for people who signed up but never finished setup, and a note before the trial ends. Now you are deciding whether Resend marketing email can carry that too, or whether you need a Resend alternative for marketing email.

This piece is for developers and technical founders already on Resend. It covers what Resend's marketing side does today, where lifecycle email asks for more, and whether to run one tool or two.

What Resend marketing email does today

Start with a correction. At least one comparison page still says Resend has no automation workflows.[1] That is out of date. Resend Automations run a series of steps when your application sends a custom event,[2] each step can wait for another event or pause for a set time,[2] and workflows can branch on conditions.[2]

Beyond Automations, the platform includes Broadcasts and Audiences alongside its transactional API.[3] With Broadcasts, unsubscribes are handled for you, and an unsubscribed contact is skipped on the next send.[4] You can personalise with variables and set a fallback for missing values,[4] write in Markdown if you prefer,[4] and schedule a send with plain phrases like "in 1 hour".[4] Its MCP server can also create and send broadcasts from an AI agent.[5]

So if what you need is a monthly product update and a short welcome series triggered by signup, Resend may well be enough, and staying put is a fine decision.

When to look for a Resend alternative for marketing email

The gap shows up when lifecycle email starts to depend on what people did, or did not do, in your product. Take a trial nudge as the test case:

  1. A trial.started event arrives.
  2. Wait two days, or until a project.created event arrives.
  3. If no project was created, send a short "here is the one thing to do first" email.
  4. Before the trial ends, send a reminder, but only to people who have not upgraded.
  5. Separately, add everyone who finished setup to next month's product update.

Resend's Automations can express the first three steps, since a step can wait for an event and branch on a condition.[2][2] Steps four and five are where to look closely, because they depend on who is in which group at the moment of sending. Three places to check.

Segments you maintain versus segments that update themselves

Resend Segments group your contacts for sending broadcasts,[6] and its segment docs describe adding or removing a contact by editing it.[6] That works well for "beta users" or "customers in Europe". For "finished setup but has not upgraded", something has to keep membership right as behaviour changes. Whatever tool you use, check what keeps a segment like that current: rules the platform evaluates for you, or updates your own code sends. If most of your segments look like the second kind, look for segments that are evaluated from events and properties, and check whether Resend's API covers what you need before you decide.

Two plans, two ways of counting

Resend sells transactional email on its own Free, Pro, Scale and Enterprise plans, with separate plans for marketing email.[7] The marketing plans are counted by contacts, not by emails sent.[7] When you compare Resend with a tool that bundles both, price both halves.

Unsubscribes across both kinds of email

An unsubscribe should stop marketing email and still let a receipt through. Loops documents exactly that rule: unsubscribed contacts still receive the transactional email they are sent.[8] Whichever setup you choose, check how an unsubscribe and a bounce in one kind of email affect the other, especially if transactional and marketing live in different tools with different contact records.

One tool or two

There are three realistic setups for a team already on Resend.

Stay on Resend for both. Least moving parts. Good while your flows are short and your segments are simple.

Keep Resend for transactional and add a marketing tool. Your sending code stays as it is. The likely cost is a second contact record: your product tells two systems about signups, plan changes and unsubscribes, and there are two places to look when an email does not arrive.

Move both onto one lifecycle platform. One place for contacts across receipts and marketing. Loops keeps one contact record for marketing, lifecycle and transactional email,[9] and Pombo runs both on the same platform. We cover the trade-offs in more detail in do you need separate tools for transactional and marketing email, and the difference between the two kinds of email in transactional vs marketing email.

Resend vs Loops vs Pombo

One comparison puts the first two simply: Resend is a transactional email API for developers,[10] and Loops is a full email marketing platform built for SaaS.[10] Loops workflows are email sequences that start from events and hold emails, timers and branches,[11] with six node types including audience filters and experiments.[11] Pombo is our product: a lifecycle email platform where your backend posts events and sequences react to them.

ResendLoopsPombo
Event-triggered sequencesAutomations, with waits and branches[2][2][2]Workflows, with timers and branches[11][11]Sequences with waits, branches and goals that end a journey once someone converts
TargetingBranch on conditions; segments you add contacts to[2][6]Audience filters inside workflows[11]Dynamic segments
Transactional and marketingSeparate plans for each[7]One contact record for both[9]Same platform, with suppression applied by kind of email

How we would choose:

  • Pick Resend if your email lives close to your code, your flows are short, and your segments are simple. A team sending receipts and a monthly update has no reason to move.
  • Pick Loops if you want a marketing tool built for SaaS, with workflows and one contact record.
  • Pick Pombo if your email should react to product events and you would like an AI agent to do the setup. If you need SMS or push in the same journeys today, look elsewhere: Pombo sequences are email only for now.

What the table does not show about Pombo

One event posted from your backend can start a sequence, send a transactional email and count as a goal at the same time. Simulation runs a sequence against your real contacts without sending anything, so you can check a flow before it goes live. Suppression is applied by kind: an unsubscribe stops marketing, while a bounce or complaint stops everything (how suppression works). And an AI agent connected over MCP can move your contacts, unsubscribes and templates across from another platform (migrating), while sending a campaign stays a click in Pombo. More on the model in event-triggered email.

Pombo has a free plan with no time limit and no card. Start free, connect your product's events, and build the first sequence before you decide whether to move transactional too.

Frequently asked questions

Does Resend support marketing automations?

Yes. Resend Automations run steps when your application sends a custom event, and steps can wait for another event, pause for a set time, or branch on conditions.

How is Resend marketing email priced?

Resend sells transactional email and marketing email on separate plans. Marketing plans are counted by contacts, not by emails sent.

Should I keep Resend for transactional email and add a marketing tool?

It keeps your sending code as it is. The likely cost is a second contact record that your product has to keep up to date. Moving both onto one lifecycle platform avoids that.

What is the difference between Resend and Loops?

Resend is a transactional email API for developers that has added marketing features; Loops is an email marketing platform for SaaS with one contact record across marketing, lifecycle and transactional email.

Sources

  1. Sendkit — Resend Alternative, Sendkit
  2. Automations - Resend, resend.com
  3. 7 best Resend alternatives for email, push, and in-app, Customer.io
  4. Marketing emails · Try for free · Resend, Resend
  5. MCP Server - Resend, resend.com
  6. Managing Segments - Resend, resend.com
  7. What is Resend Pricing - Resend, resend.com
  8. Transactional email - Loops, Loops
  9. Marketing Email for Software Companies | Loops, Loops
  10. Resend vs Loops: Which Is Better in 2026? (Pros & Cons), Sequenzy
  11. Workflows - Loops, Loops