Mail Health Check

Is your mail configuration
really correct?

Emails end up in spam, can be forged or you lose delivery — without noticing. Check in seconds whether SPF, DKIM, DMARC, MTA-STS and 10 more checks are configured correctly.

Only publicly reachable domains are supported.

14Checks
3Detail levels
EUHosting

vernax.app

Example result

92

/ 100

MX-RecordsOK
SPFWarn
DKIMOK
DMARCOK
DANE / TLSAOK

What is checked

DNS

  • MX
  • SPF
  • DKIM
  • DMARC
  • MTA-STS
  • BIMI
  • PTR
  • DNSSEC

TLS

  • STARTTLS
  • TLS version
  • Certificate
  • DANE / TLSA

Reputation

  • Spamhaus ZEN
  • Barracuda
  • SpamCop
  • SORBS
  • Spamhaus DBL

Security

  • DNSSEC Chain
  • Open Relay
  • PTR Match
  • SMTP Banner