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MailySend
Drop-in Resend Replacement, one click deploy on Cloudflare
Point the resend SDK at your own deployment and nothing else changes. MailySend reimplements that API on Cloudflare Workers — plus broadcasts, automations, inbound mail, DMARC parsing and an MCP server for agents. MIT, one-click deploy, your account.
Hey Product Hunt 👋
I built MailySend because I liked Resend's API and disliked where the data sat.
Your sending history, your contact list and your bounce data live in someone
else's account, on their retention policy, at a per-email markup over what the
bytes actually cost.
So this is that API, reimplemented on Cloudflare's own primitives, running in
your account:
- const resend = new Resend(process.env.RESEND_API_KEY)
+ const resend = new Resend(process.env.MAILYSEND_API_KEY)
+ // RESEND_BASE_URL=https://your-deployment/v1
The `resend` npm package honours `RESEND_BASE_URL`, so that is the whole
migration. No rewrite, and no lock-in in either direction.
What's in it: transactional sending (batches, scheduling, idempotency
keys), marketing broadcasts with A/B testing and holdouts, live segments that
compile to parameterised SQL, automations on Cloudflare Workflows, real inbound
mailboxes with MIME parsing and reply threading, delivery events with bounce
classification, parsed DMARC aggregate reports, opens and clicks split by bot
vs. human, and a nine-tool MCP server so an assistant can read and draft mail --
behind an approval screen you click before anything sends.
Four transports, one API: Cloudflare Email Service, Amazon SES, Resend, or
plain SMTP, with deterministic routing and failover. Switching is one config
line.
Cost: about $16/month for 100k emails on SES, or $40 on Cloudflare's own
sender -- against $90 on Resend Pro and $60 on SendGrid. The dashboard shows
your real month-to-date Cloudflare spend next to your send volume, so the
estimate is answerable to a number.
Honest about the trade: you are on call. Postmark measures inbox placement
better than we do, and our comparison table says so. SES on its own is ~$10 at
this volume -- MailySend runs *on top of* SES for the same per-thousand rate, it
doesn't compete with it.
MIT licensed, one-click deploy to Cloudflare, and it also runs as a plain Node
process with no Cloudflare account at all. Live demo and docs at mailysend.com
-- the screenshots are real traffic, not empty states.
I'd love to hear what breaks, and what's missing before you'd move a production
sender onto it.
About MailySend on Product Hunt
“Drop-in Resend Replacement, one click deploy on Cloudflare”
MailySend was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #152 on the daily leaderboard. Point the resend SDK at your own deployment and nothing else changes. MailySend reimplements that API on Cloudflare Workers — plus broadcasts, automations, inbound mail, DMARC parsing and an MCP server for agents. MIT, one-click deploy, your account.
On the analytics side, MailySend competes within Email, GitHub and Marketing automation — topics that collectively have 82.4k followers on Product Hunt. The dashboard above tracks how MailySend performed against the three products that launched closest to it on the same day.
Who hunted MailySend?
MailySend was hunted by Gagandeep Singh. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of MailySend including community comment highlights and product details, visit the product overview.
Gagandeep Singh