SendBunny vs ResendA great send API on someone else's cloud, or the same job in an account you already control.

Resend's product is the developer experience of sending an email: a clean SDK, good docs, webhooks that behave, all running on Resend's own cloud. What it does not give you is a home for the audience itself; list management and campaign sending are limited compared to a full email service provider, and every email routes through Resend's infrastructure and Resend's billing.

SendBunny takes the opposite shape. It installs as a CloudFormation stack into your AWS account with one click, and from that point on it sends through your own Amazon SES identity, not a shared vendor cloud. The license is $199 once, unlimited contacts included, and Amazon SES bills you directly for what you send, at roughly $0.10 per 1,000 emails.

SendBunny's install includes campaigns, a drag-based template editor, automations, a shared team inbox, delivery analytics and a REST transactional send API, all reading and writing to the same account. Resend's strength runs the other way: it is purpose-built for developers sending transactional mail from application code, with less surface aimed at marketing campaigns or a shared inbox.

Resend's Pro tier absorbs the first 50,000 emails a month for a flat rate, which is a fine deal at that volume and simpler to budget than raw SES pricing. The gap opens at real scale: a million emails a month runs close to $650 on Resend's Scale plan, against roughly $100 in Amazon SES send fees plus the one-time SendBunny license already paid. The markup on hosted per-email pricing is the price of not touching AWS at all, and it grows with volume rather than shrinking.

This is the honest tradeoff, not a footnote. Resend's SDKs, webhook reliability and documentation are built for one job and do it well, and a team that only ever sends transactional email, password resets, receipts, one-off notifications, may never need anything SendBunny adds on top. SendBunny's send API covers the same from, to, subject, body and template-alias pattern, with suppression enforced automatically, but it is one part of a wider platform rather than the entire product.

The other side of that tradeoff is what SES brings back: an AWS account you already pay for, no separate vendor relationship for email, and no per-email markup once volume climbs past what a Pro-tier plan covers.

• Pick Resend if you send only transactional email, want zero AWS involvement of any kind, and value a purpose-built developer API over a campaign UI.
• Pick SendBunny if you already use AWS, want campaigns and transactional sending from the same account, or expect volume to grow past the point where per-email SaaS pricing stays reasonable.

A team just prototyping, sending a handful of transactional emails a month with no AWS account in sight, will get moving faster on Resend's free tier than on a CloudFormation install. That advantage narrows as soon as a marketing list, a template library or real send volume enters the picture.

1. Keep Resend live while you install SendBunny with the one-click Create stack step in your AWS account, about ten minutes.
2. Verify your sending domain on Amazon SES, using the DKIM, SPF and DMARC records the app generates.
3. Point your application's send calls at the SendBunny API in place of Resend's SDK, keeping the same from-address once DNS has propagated.
4. Import any audience you manage outside Resend as a CSV, since Resend itself has little list functionality to export.
5. Turn off Resend once send volume on SES is stable, rather than cutting over mid-campaign.