~/d/fastmail.com
// fastmail.com
Live audit across 8 checks. Cached 24h · generated less than a minute ago.
domain_grade
B
good
82
/ 100 · across 8 checks
// points lost on:
dmarc −10
spf −5
dnssec −3
SSL Certificate
[ OK ]
Valid for 70 more days.
Issued by R12 · 70 days left · TLSv1.3
DMARC Policy
[ WARN ]
DMARC record exists but policy is 'none' — monitoring only, not enforcing. Switch to 'quarantine' or 'reject' to block spoofing.
v=DMARC1; p=none; rua=mailto:[email protected]
SPF Record
[ WARN ]
Soft fail (~all). Unauthorized senders flagged but not rejected. Consider -all for stronger protection.
1 lookups · all=~all
MX Records
[ OK ]
MX configured. Detected provider: FastMail.
10 in1-smtp.messagingengine.com · 20 in2-smtp.messagingengine.com
Name Servers
[ OK ]
2 authoritative nameservers
fmns1.messagingengine.com · fmns2.messagingengine.com
Security Headers
[ OK ]
Strong security headers (80/100) — weak: content-security-policy.
Score 80/100
[ embed_grade_badge ]
Domain grade: B — good
markdown (github readme)
[](https://dombrains.com/d/fastmail.com)
html (any webpage)
<a href="https://dombrains.com/d/fastmail.com"><img src="https://dombrains.com/badge/fastmail.com/grade.svg" alt="DomBrains grade: B"></a>
// re-queries our scoring engine · cached 1h at the edge · backlinks to this profile page
[ per_check_badges ]
<img src="https://dombrains.com/badge/fastmail.com/ssl">
<img src="https://dombrains.com/badge/fastmail.com/dmarc">
<img src="https://dombrains.com/badge/fastmail.com/spf">
<img src="https://dombrains.com/badge/fastmail.com/mx">
<img src="https://dombrains.com/badge/fastmail.com/dnssec">
<img src="https://dombrains.com/badge/fastmail.com/security_headers">