A developer-first email API against a delivery service that also receives mail. Their free tiers are the same size, their paid plans cross at 10,000 emails, and they differ on inbound routing, address validation and which plan carries a written SLA. This page reads both pricing pages and puts the figures side by side; Notix appears as a third column, not as the subject.
Resend's figures were read from its pricing page on 2026-09-12 and Mailgun's from its pricing page on 2026-09-13; both dates are repeated under the table. Notix figures come from its own pricing page.
| Criterion | Resend | Mailgun | Notix |
|---|---|---|---|
| Free tier | 3,000 emails a month, 100 a day, 1 domain | 100 emails a day, one inbound route | 5,000 emails a month, 200 a day, no card, no end date |
| Entry paid plan | Pro $20 a month | Basic $15 a month | Pro $15 a month |
| Included on that plan | 50,000 emails a month | 10,000 emails a month (Foundation: $35 for 50,000) | 50,000 emails, usage past that metered on the same invoice |
| SMTP relay | Yes, on every plan | Yes, on every plan | Yes, on every plan |
| SDKs | Node, Python, PHP, Ruby, Go, Java, Laravel, Rust, .NET | Node, Python, PHP, Ruby, Go, Java, C# | TypeScript, Python, Go, PHP |
| Webhooks | Yes | Yes | Yes, signed, for email, contact and domain events |
| OTP / verification API | No | No | Yes, email and SMS codes |
| Deliverability check before sending | No | Email validation as an add-on ($1.80 per 1,000 on Basic; 5,000 included from Foundation) | Yes, a pre-send check API |
| Billing outside USD | USD by card | USD by card | USD by card; naira and shillings from a prepaid wallet |
| SLA | Not stated on the pricing page | Stated for Scale and above | 99.9% on Pro, credits on the pricing page |
| Prices and limits read from the vendors' own pages: resend.com on 2026-09-12; www.mailgun.com on 2026-09-13. Notix figures are from its own pricing page. | |||
Resend's free plan is 3,000 emails a month with a 100 a day cap and one sending domain. Mailgun's is 100 emails a day, about 3,000 a month, with one inbound route. On volume they are the same size; the shapes differ. Resend counts the month and the day, Mailgun the day only, and Mailgun's includes receiving. Either carries a side project; neither is meant for production volume.
Mailgun Basic is $15 a month for 10,000 emails. Resend Pro is $20 a month for 50,000. At 10,000 emails Mailgun is $5 cheaper; at 50,000 Mailgun moves you to Foundation at $35 while Resend stays at $20. The crossover sits exactly at Mailgun's Basic ceiling: the first email past 10,000 a month makes Resend the cheaper plan, and it stays cheaper to 50,000.
Both take a JSON body with from, to, subject and html and return a message id, and both offer an SMTP relay on every plan, so a framework mailer can send without the API. A plain transactional send moves between the two after a client swap and a credential change. Mailgun also receives: inbound routes accept mail for your domain and post it to your application. Resend's pricing page compared here covers sending only.
Resend lists Node, Python, PHP, Ruby, Go, Java, Laravel, Rust and .NET. Mailgun lists Node, Python, PHP, Ruby, Go, Java and C#. The mainstream server languages get a typed client from both; Rust and a first-party Laravel package are Resend-only on the lists each vendor publishes. For the languages both cover, the choice will not rest on the client.
Both deliver event webhooks for delivery, bounce and complaint events. Mailgun sells address validation as an add-on, $1.80 per 1,000 checks on Basic and 5,000 a month included from Foundation; Resend lists no validation product. Neither offers a one-time-code API, and neither offers a deliverability check you can call before a send.
Both bill in US dollars by card. Mailgun states an SLA for Scale and above, which begins at $90 a month; Resend's pricing page does not state an SLA figure. Neither entry plan carries a written uptime commitment. If one is a requirement, Mailgun's Scale plan meets it and Resend's pricing page, as read here, does not say.
On the same criteria: Notix Free is 5,000 emails a month and 200 a day with no card and no end date, the same size as both free tiers here. Pro is $15 a month for 50,000 emails, with usage past that metered on the same invoice: Mailgun's entry price with Resend's volume inside it. SMTP, webhooks and SDKs for TypeScript, Python, Go and PHP are on every plan. Notix does not receive mail, so Mailgun's inbound routes stay a reason to pick Mailgun. Where it differs is on the rows the other two leave empty: a verification API for one-time codes by email or SMS, a deliverability check you call before a send, a 99.9 percent commitment on the $15 plan, and billing from a naira or shilling wallet as well as by card.
Same free tier shape, $5 a month less at 50,000 emails, plus OTP and deliverability APIs and naira or shilling billing.
AlternativesSame $15 entry, 50,000 emails instead of 10,000, and a suppression list shared across transactional and marketing.
ComparePricing, sending API, deliverability tooling, SDKs and billing regions, side by side with a read date.
CompareSame $15 entry, different included volume, and where Mailgun's inbound routing and validation matter.
CompareEvery vendor in one table with read dates, and a straight answer to which transactional email API a startup should pick.
NotixA free plan with no card, and Pro at $15 a month for 50,000 emails. Only sent volume is metered.
5,000 emails a month on Free, no card, no end date. Pro is $15 for 50,000 emails.