Email on your domain / Fastmail
Fastmail on your domain. The exact records.
The DNS records Fastmail’s own docs ask for, so mail to you@yourdomain arrives and what you send isn’t marked as spam. Add them at your domain’s DNS provider, then check your domain live below.
Add these records at your DNS provider
“@” means the domain itself. MX records receive mail; SPF, DKIM and DMARC prove that mail you send is really yours.
Type Name Value MXReceive mail @ in1-smtp.messagingengine.comPriority 10 MXReceive mail (backup) @ in2-smtp.messagingengine.comPriority 20 TXTAllowed senders (SPF) @ v=spf1 include:spf.messagingengine.com ?all CNAMESigning key (DKIM) fm1._domainkey fm1.yourdomain.com.dkim.fmhosted.com CNAMESigning key (DKIM) fm2._domainkey fm2.yourdomain.com.dkim.fmhosted.com CNAMESigning key (DKIM) fm3._domainkey fm3.yourdomain.com.dkim.fmhosted.com TXTAnti-spoofing (DMARC) _dmarc v=DMARC1; p=none Good to know
A domain can have only one SPF record. If your app also sends email through another service, the two must be merged into one: add the service below and the check gives you the merged record.
Check your domain
Type your domain: we read public DNS and show which Fastmail records are in place, which are missing and which need to change.
No domain yet? Find one and see what it really costs →
Fastmail plans for your own domain
Standard prices, checked 2026-09-26| Plan | Price | What you get |
|---|---|---|
| Individual | $5.00 a month per mailbox | 60 GBOne person; $6 if paid monthly. Calendar and contacts included. |
| Business Standard | $5.00 a month per mailbox | 60 GB per userPer user; $6 if paid monthly. (Business Basic at $3 doesn’t allow custom domains.) |
From Fastmail’s documentation: www.fastmail.help. If Fastmail shows different values in your account, use those. Don’t have Fastmail yet? Sign up ↗ (may be an affiliate link). Compare every provider over two years →
Other inboxes: Google Workspace · Microsoft 365 · Zoho Mail · Proton Mail · iCloud+ Custom Email Domain · Purelymail · Migadu · Namecheap Private Email · Hostinger Email · Cloudflare Email Routing