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strato.de

Checked 2026-10-22 00:31 UTC · first added 2026-10-21
✗Problems found Score 78 of 100

Domain & DNS

warn

28 passed 1 warn 0 failed

Areas

iRegistration ✓Delegation iNameservers !SOA ✓DNSSEC iRecords

Problems

  • !
    Unusual SOA timers
    SOA · retry 2h should be shorter than refresh 1h. Current values: refresh 1h, retry 2h, expire 41d, negative TTL 10m.
    #23

Recent checks

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Full report

Domain & DNS report for strato.de ›

Mail

fail

26 passed 3 warn 1 failed

Areas

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

Problems

  • ✗
    13 DNS lookups, over the limit of 10
    SPF · SPF record needs 13 DNS lookups (including nested includes), more than the limit of 10. Receivers will return a permerror; reduce includes or flatten the record.
    #2
  • !
    No key under common selectors
    DKIM · The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.
    #7
  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    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 strato.de ›