Resend

resend.com · Email · 1 record · JSON

Resend Email

caveatemailno cardDrequest-rate

resend.com/pricing · transactional sender · email/resend · JSON · compare

Free tier	3,000 emails/month and 100/day, 3 domains, 3 inboxes, 30-day retention unit requests; metered on request-count
Price	none stated
Per-object cap	not applicable: a message count rather than an object
Retention	logs kept 30 days; inbound messages count against the same quota
Egress	not applicable: an outbound sender
Identity	email an account and a verified sending domain; no card on the free plan
Limits	request-rate 100 emails per UTC calendar day, resetting at 00:00 UTC source request-rate 10 requests per second per account source request-rate received email counts against both the daily and the monthly quota source
Binding	request-rate 100/day rather than 3,000/month: the 30:1 ratio means the monthly figure cannot be spent in a burst, and the page states the UTC boundary explicitly.
Interface	rest https://api.resend.com/emails
Tooling	curl, any HTTP client
Composes with	the outbound half of the free mail chain: unlimited inbound from Cloudflare Email Routing or Forward Email, then 100 messages a day out through Resend. The daily cap is the scarce link.
Reliability	sending pauses above a 4% bounce rate, which is a reputation cap rather than a volume cap
Notes	A spike at 23:50 UTC gets 100 more at midnight, which is the one burst the boundary allows.
Evidence rung	documented no message was sent, so no delivery is proved. The submission path was probed: smtp.resend.com:587 answered 250, STARTTLS completed, and AUTH LOGIN returned 334
Checked	2026-10-23 (live); stale on 2026-11-22
Parsed numbers	`$.limits[1].value` limit:request-rate 10.0 requests

Evidence (2)

date	source	what it proved
2026-10-22	resend.com/docs/knowledge-base/resend-sending-limits	'daily email quota of 100 emails/day and 3,000 emails/month', a UTC calendar day rather than a rolling window, multiple recipients counting separately, 10 requests per second, and received mail counting against the quota
2026-10-22	probe:smtp://smtp.resend.com:587	banner 250, EHLO advertises SIZE and 8BITMIME, STARTTLS completed, and AUTH LOGIN returned 334. The submission endpoint answers; no message was sent

More fields (1)

{
 "stale_after_days": 90
}