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Results for

fresenius.com

Email authentication

The basics are in place but can be hardened.

  • 4Pass
  • 1Warning
  • 0Fail
  • 1Not set

SPF

Pass

Authorizes which servers may send mail for the domain

SPF is published and within limits.

Policy
-all
DNS lookups
3 / 10
  • Ends in -all (hardfail): unauthorized senders are rejected.
  • Uses 3 of 10 allowed DNS lookups.
v=spf1 include:spf.fresenius.com include:psm.knowbe4.com ip4:98.85.207.89 ip4:44.194.142.81 ip4:44.235.179.233 ip4:44.245.65.175 ip4:54.240.45.174 ip4:69.169.238.206 ip4:54.229.2.165 ip4:52.30.130.201 ip4:212.18.1.32/27 ip4:212.18.21.64/27 ip4:216.74.162.13/30 ip4:216.74.162.14/30 ip4:13.81.210.166 ip4:170.207.37.144 ip4:170.207.37.145 ip4:170.207.39.152 ip4:170.207.39.153 ip4:195.30.231.225 -all

DKIM

Pass

Cryptographically signs outgoing mail (best-effort selector probe)

DKIM key published for 3 known selectors.

Selectors
selector1, s1, s2
  • Found a DKIM key at selector1._domainkey.fresenius.com
  • Found a DKIM key at s1._domainkey.fresenius.com
  • Found a DKIM key at s2._domainkey.fresenius.com

DMARC

Pass

Tells receivers what to do with mail that fails SPF and DKIM

DMARC is enforced.

Policy
p=reject
Coverage
100%
  • Policy p=reject: failing mail is rejected outright.
  • Aggregate reports (rua) are configured.
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected];

MTA-STS

Warning

Enforces TLS for inbound mail and prevents downgrade attacks

MTA-STS is published but not enforcing.

Mode
testing
Max age
604800s
  • Policy mode is testing: failures are reported but mail is still delivered.
v=STSv1; id=20260107170000Z;

TLS-RPT

Pass

Receives reports about TLS delivery failures

TLS reporting is configured.

Reports to
mailto:[email protected]
  • TLS delivery failure reports are being collected.
v=TLSRPTv1; rua=mailto:[email protected]

BIMI

Not set

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.