Email authentication
The basics are in place but can be hardened.
Authorizes which servers may send mail for the domain
SPF is published but could be tightened.
v=spf1 include:servers.mcsv.net +include:spf.secure.ly +ip4:65.21.44.53 +ip6:fe80::7aac:44ff:fe40:7d52 include:one.zoho.com include:stspg-customer.com ~allCryptographically signs outgoing mail (best-effort selector probe)
DKIM key published for 2 known selectors.
Tells receivers what to do with mail that fails SPF and DKIM
DMARC is enforced.
v=DMARC1; p=reject; adkim=s; aspf=s; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; fo=1:d:s;Enforces TLS for inbound mail and prevents downgrade attacks
MTA-STS is published but not enforcing.
v=STSv1; id=20210310081434122453;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://vmc.digicert.com/c04994e4-9084-407c-bdb3-dbb24335cf8a.svg;a=https://vmc.digicert.com/c04994e4-9084-407c-bdb3-dbb24335cf8a.pemChecks 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.