Connect your domain
One DNS record, and every address on your domain becomes a mailbox here. There is no second step: no account, no verification page, no key to keep. The first message that arrives is what connects the domain.
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Add this MX record at your DNS provider
TypeMXName@Priority10Value — the part you pastesmtp.grabmail.ioDelete every other MX record on the domain. Mail can only be delivered to one place, and a leftover record from a previous provider takes part of your traffic in silence. We accept a domain only when we are its single MX, for exactly that reason.
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There is no step two
Send anything to any address on your domain. We look the MX up as the message arrives; if it points here, the domain is connected on the spot and that first message is kept — not bounced, not lost while something is activated. Read it at
https://grabmail.io/inbox/anything@yourdomain.comor through the same API as everything else.
Read this before you point a domain here
Mail on your domain is readable by anyone who knows the address, exactly like our public domains — there is no key and no password on it. That is the trade for having no account: nothing identifies an owner, so nothing can be locked to one. Use it for throwaway signups, for testing, for an address you print on a page. Do not use it for anything you would mind a stranger reading.
What you get
- Every address on the domain, created on the fly
- Working from the first message — nothing to activate
- Your domain never appears anywhere on this site
- The same API, and the same 5-day retention
- Free, like the rest of it
No domain of your own? A paid plan gives API access to 92 private .com domains, kept off the disposable-mail blocklists — see the plans.