F
o2.co.uk
Email security grade F · 10/100
As of 2026-07-01 15:50 UTC
Score breakdown
Policy strictness
0/30
no DMARC record published
Alignment mode
0/15
no DMARC policy
Reporting
0/15
no rua= configured; you receive no reports from receivers
Percent at fail position
0/10
no DMARC policy
Authentication coverage
10/20
SPF only; both should be present for DMARC to align reliably
MTA-STS
0/5
no MTA-STS policy published
TLS-RPT
0/5
no TLS-RPT record (you won't see TLS failure reports)
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