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one.com

Checked 2026-10-22 10:05 UTC · first added 2026-10-21
!Passed with warnings Score 88 of 100

Domain & DNS

ok

31 passed 0 warn 0 failed

Areas

iRegistration iDelegation ✓Nameservers iSOA ✓DNSSEC iRecords

Recent checks

✓

Full report

Domain & DNS report for one.com ›

Mail

warn

30 passed 4 warn 0 failed

Areas

✓SPF ✓DMARC !DKIM ✓DNSSEC !MX !TLS ✓BIMI

Problems

  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: mx1.pub.mailpod12-cph3.one.com, mx2.pub.mailpod12-cph3.one.com, mx3.pub.mailpod12-cph3.one.com, mx4.pub.mailpod12-cph3.one.com
    #11
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: k1 (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    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
  • !
    Not configured
    TLS · MTA-STS or DANE is used without TLS-RPT, so you get no reports when senders fail to deliver because of TLS problems. Publish _smtp._tls TXT "v=TLSRPTv1; rua=mailto:...".
    #35

Recent checks

!

Full report

Mail report for one.com ›