Email authentication
The basics are in place but can be hardened.
Authorizes which servers may send mail for the domain
SPF is published and within limits.
v=spf1 include:spf1.graz4u.at -allCryptographically signs outgoing mail (best-effort selector probe)
No DKIM key found for common selectors.
Tells receivers what to do with mail that fails SPF and DKIM
DMARC is published but not fully enforcing.
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=90; aspf=r; adkim=r; sp=quarantineEnforces TLS for inbound mail and prevents downgrade attacks
MTA-STS is published but not enforcing.
v=STSv1; id=174108359142Z;Receives reports about TLS delivery failures
TLS reporting is configured.
v=TLSRPTv1; rua=mailto:[email protected]Displays your verified brand logo in supporting inboxes
BIMI is published.
v=BIMI1; l=https://graz4u.at/graz4u_Logo.svgChecks 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.