A
theguardian.com
Email security grade A · 88/100
As of 2026-07-01 17:10 UTC
Score breakdown
Policy strictness
30/30
p=reject (full enforcement)
Alignment mode
10/15
relaxed alignment (default; safer for forwarders)
Reporting
10/15
rua only (aggregate reports); add ruf for forensic per-message reports
Percent at fail position
10/10
no pct tag in play; your policy applies to all failing mail
Authentication coverage
20/20
both SPF and DKIM published
MTA-STS
3/5
MTA-STS testing mode (flip to enforce when ready)
TLS-RPT
5/5
TLS-RPT record published
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