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mtu.de

Checked 2026-10-21 23:30 UTC · first added 2026-10-21
✗Problems found Score 84 of 100

Domain & DNS

ok

28 passed 0 warn 0 failed

Areas

iRegistration iDelegation iNameservers ✓SOA ✓DNSSEC ✓Records

Recent checks

✓

Full report

Domain & DNS report for mtu.de ›

Mail

fail

26 passed 2 warn 1 failed

Areas

✓SPF ✗DMARC ✓DKIM ✓DNSSEC !MX !TLS iBIMI

Problems

  • ✗
    Policy: none (monitoring only)
    DMARC · DMARC policy is set to 'none', which only monitors but doesn't protect against spoofing. Consider upgrading to 'quarantine' or ideally 'reject'.
    #4
  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: mx0-61.mtu.de, mx1-63.mtu.de, mx2-63.mtu.de
    #11
  • !
    Not configured
    TLS · MTA-STS is not configured, so other mail servers fall back to unencrypted delivery when TLS fails or is stripped by an attacker. Publish a _mta-sts TXT record and a policy at https://mta-sts.<domain>/.well-known/mta-sts.txt.
    #32

Recent checks

✗

Full report

Mail report for mtu.de ›