SMTP.com alternatives
Providers that compete with SMTP.com on at least one of: Transactional
Legacy SMTP relay and email delivery service.
Switching as SaaS product teams
A SaaS product sends on behalf of its customers, so the deciding factors are tenant isolation, whether suppressions can be scoped rather than global, and whether support can answer why one specific account did not receive one specific email. Lifecycle automation and transactional sending usually need to coexist.
SMTP.com does not cover multi-tenant support and scheduling. MailerSend, Mailgun, and Postmark close that gap. The order below weighs this audience's priorities first, so it differs from a general popularity ranking.
ranked for SaaS product teams
- 01
MailerSend
TransactionalModern transactional API with a clean UI.
Adds multi-tenant support and scheduling over SMTP.com, with nothing given up on these priorities.
500/mo permanent · $7/mo for 5,000 emails - 02
Mailgun
TransactionalDeveloper-leaning email infra, owned by Sinch.
Adds multi-tenant support and scheduling over SMTP.com, with nothing given up on these priorities.
100/day permanent free plan · $15/mo for 10,000 emails (Basic) - 03
Postmark
TransactionalTransactional-only, fast and well-delivered.
Adds multi-tenant support over SMTP.com, with nothing given up on these priorities.
100/mo developer plan · $15/mo for 10,000 emails - 04
Mailtrap
Transactional TestingOriginally a staging inbox, now a sender too.
Adds multi-tenant support over SMTP.com, with nothing given up on these priorities.
4,000/mo (sending), free testing tier · $15/mo for 10,000 sending - 05
Cloudflare Email Service
Inbound TransactionalFree routing, programmable inbound via Workers, sending in beta.
Adds multi-tenant support, gives up webhook coverage.
Email Routing free; Email Workers on Workers Free plan · Sending: $0.35 per 1,000 messages (Workers Paid required, $5/mo) - 06
Loops
Marketing TransactionalModern lifecycle and broadcast email for SaaS.
Adds scheduling over SMTP.com, with nothing given up on these priorities.
1,000 contacts and 4,000 sends/mo on the Free plan · $49/mo for 5,000 contacts - 07
Resend
TransactionalEmail API tightly coupled to React Email.
Adds scheduling over SMTP.com, with nothing given up on these priorities.
3,000/mo permanent, capped at 100/day, one domain · $20/mo for 50,000 emails - 08
Brevo
Transactional MarketingAll-in-one with a generous daily free tier.
Adds scheduling over SMTP.com, with nothing given up on these priorities.
300/day permanent · $9/mo for 5,000 emails
SMTP.com and its alternatives, side by side
Columns are the priorities SaaS product teams weigh, in order. SMTP.com is the first row so the trade in each direction is readable at a glance.
| Provider | Multi-tenant | Event stream | Suppressions API | Operating since | Scheduling | Best published rate per 1,000 | Webhooks |
|---|---|---|---|---|---|---|---|
| SMTP.com | No | Yes | Yes | Not published | No | Tiers not published in comparable form | Yes |
| MailerSend | Yes | Yes | Yes | 2020 | Yes | Tiers not published in comparable form | Yes |
| Mailgun | Yes | Yes | Yes | 2010 | Yes | $0.70 | Yes |
| Postmark | Yes | Yes | Yes | 2010 | No | $1.50 | Yes |
| Mailtrap | Yes | Yes | Yes | 2014 | No | Tiers not published in comparable form | Yes |
| Cloudflare Email Service | Yes | Yes | Yes | Not published | No | Tiers not published in comparable form | No |
| Loops | No | Yes | Yes | 2022 | Yes | Tiers not published in comparable form | Yes |
| Resend | No | Yes | Yes | 2023 | Yes | $0.35 | Yes |
| Brevo | No | Yes | Yes | 2012 | Yes | Tiers not published in comparable form | Yes |
MailerSend, Mailgun, and Postmark add capability without giving anything up on these priorities. The rest trade one thing for another.