Email authentication
Email authentication is well configured.
Authorizes which servers may send mail for the domain
SPF is published and within limits.
v=spf1 include:21001394.spf02.hubspotemail.net include:_spf.firebasemail.com -allCryptographically signs outgoing mail (best-effort selector probe)
DKIM key published for 3 known selectors.
Tells receivers what to do with mail that fails SPF and DKIM
DMARC is enforced.
v=DMARC1; p=quarantine; rua=mailto:[email protected]; pct=100; adkim=s; aspf=sEnforces TLS for inbound mail and prevents downgrade attacks
MTA-STS is enforcing TLS.
v=STSv1; id=20250821T0000ZReceives reports about TLS delivery failures
TLS reporting is configured.
v=TLSRPTv1; rua=mailto:[email protected]Displays your verified brand logo in supporting inboxes
No BIMI record. No brand logo is published for inboxes.
Checks query live DNS over Cloudflare and the public MTA-STS policy endpoint. DKIM selectors cannot be listed from DNS, so DKIM detection probes common provider selectors only.