SPF
Which servers can send as you1 of 10 lookups · ends ~all
fastmail.comFastmail
The basics are in place, with a few things to tighten.
Set up
DKIM
A signature on every messageFound: fm1
DMARC
What to do with mail that failsPolicy: none
What to fix
DMARC is set to monitor only
With p=none, receivers report failures but still deliver them, so others can still send mail that looks like yours.
When your reports show your real mail passing, change the policy to quarantine:
TXT record for _dmarc.fastmail.com
v=DMARC1; p=quarantine; rua=mailto:e3936a44@inbox.ondmarc.comGmail, Yahoo and Outlook.com rules
- SPF or DKIMEveryone sending to Gmail and YahooMet
- SPF and DKIM5,000+ emails a day to Gmail, Yahoo or Outlook.comMet
- A DMARC policy5,000+ emails a day to Gmail, Yahoo or Outlook.comMet
Where your mail goes
Fastmail- 10in1-smtp.messagingengine.com
- 20in2-smtp.messagingengine.com
Your records
- SPF
v=spf1 include:spf.messagingengine.com ~all - DMARC
v=DMARC1; p=none; rua=mailto:e3936a44@inbox.ondmarc.com - DKIM
fm1._domainkey · RSA 2048-bit - DKIM
fm2._domainkey · revoked - DKIM
fm3._domainkey · revoked - OptionalMTA-STS publishedTLS reporting publishedBIMI not published