Does Resend support IMAP?

No. Resend parses inbound mail and posts it to a webhook, and its Inboxes product for agents (private beta) works through its API, CLI and MCP. Neither gives you an IMAP or SMTP login for a mail app. Every Mektup mailbox has IMAP and SMTP.

Is Mektup a Resend alternative?

For transactional sending plus receiving, yes: the same kind of API call sends from your domain, and replies land in a real mailbox on the same address. For newsletters, no: Mektup has no audiences or broadcasts.

Can I use Mektup and Resend together?

Yes. A common split is Resend for marketing broadcasts and Mektup for the addresses that send transactional mail and receive replies, forms and support mail.

Does received mail count against my quota?

Not on Mektup: limits count recipients of mail you send. Resend counts received emails against its plan quota.

Mektup vs Resend: inbound mail, IMAP and price

Mektup vs Resend

Resend is built to send. Inbound mail reaches you as a parsed webhook, its Inboxes product for agents is in private beta, and there is no IMAP. Mektup sends from the same kind of API and receives into real mailboxes that your code reads by API or webhook and your team opens in webmail or any mail app.

Updated 23 October 2026

Features

	Mektup	Resend
Send from your domain by API	Yes	Yes
Receive mail	Into stored mailboxes	Parsed to a webhook; Inboxes in private beta
IMAP and SMTP for mail apps	Every mailbox	No
Webmail for people	Yes	No
MCP server	Yes	Yes
Website forms	Built in	No
Newsletters and audiences	No	Yes
Free plan	No	3,000 emails a month

Price

	Mektup Starter	Resend Pro
Price	$20 a month	$20 a month
Emails	50,000 sent; received mail not counted	50,000 including received mail
Inboxes	Unlimited mailboxes	3, then $1 per inbox a month
Domains	25	By plan

From each company's pricing page on 23 October 2026.

When to choose which

Resend if you only send, if you want React Email and marketing broadcasts in the same tool, or if you want a free plan. Mektup if replies matter: support mail, AI agents that answer, people who should read the conversation in their mail app, or an inbox per customer.

Moving your sending

- POST https://api.resend.com/emails
+ POST https://api.usemektup.com/v1/emails
  Authorization: Bearer <key>
  { "from": "...", "to": "...", "subject": "...", "html": "...", "replyTo": "..." }

Add your domain in Mektup and add the records it returns.
Create mailboxes for the addresses that receive. Send-only addresses like noreply@ need none.
Change the URL; the Bearer header and the body fields stay the same.
Replace your inbound webhook handler with a Mektup mailbox webhook.