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t-mobile.nl

Checked 2026-10-21 21:25 UTC · first added 2026-10-21

!Check could not complete

Domain & DNS

error

28 passed 0 warn 0 failed 1 errors

lookups failed for rdap; results are incomplete

Areas

iRegistration iDelegation ✓Nameservers ✓SOA iDNSSEC iRecords

Recent checks

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Full report

Domain & DNS report for t-mobile.nl ›

Mail

warn

26 passed 4 warn 0 failed

Areas

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

Problems

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Single MX host, no backup

MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.

#12
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Signatures expire in 5h0m0s

DNSSEC · DNSKEY signatures expire at 2026-10-22T02:00:00Z (in 5h0m0s). Check that re-signing works.

#21
!

1024-bit DKIM key

DKIM · 1024-bit RSA keys are the minimum and are considered weak today: dkim (1024 bits), mail (1024 bits), k1 (1024 bits), selector1 (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

Recent checks

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Full report

Mail report for t-mobile.nl ›