DKIM for Fastmail
Fastmail uses the selector fm1. Enter your domain and fm1 below to check the key is published.
- Free
- No Sign-Up
- Live Lookup
Examples:
DKIM Checker
Fastmail DKIM
Selectorfm1
Record Namefm1._domainkey.yourdomain
Check From a Terminaldig +short TXT fm1._domainkey.example.com
SPF and Set-Upfrabs.net/tools/spf-checker/fastmail/
Mail from Fastmail carries a DKIM-Signature header with s=fm1 (or another selector the provider shows for your domain). Receivers fetch the public key from fm1._domainkey on your domain to check it.
If the record is a CNAME, the provider hosts the key and can rotate it for you; keep the CNAME exactly as given.
Questions
What is the DKIM selector for Fastmail?
fm1, unless your admin panel shows a different one for your domain.
Why does DKIM still fail?
Signing must also be switched on in the provider's settings, and the record must be published exactly, without extra quotes or spaces.
Free Tools
More tools
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