Measured 2026-06-19 · public DNS
Is tandem.co.uk protected against email spoofing?
Partially — tandem.co.uk quarantines unauthenticated mail (p=quarantine).
B
DMARC
p=quarantine
SPF
-all
DKIM
4 selector(s)
Published record
v=DMARC1; p=quarantine; fo=1; pct=100; rf=afrf; rua=mailto:dmarc-aggreports@tandem.co.uk; ruf=mailto:dmarc-forensicreports@tandem.co.ukWhat this means
- • Politique p=quarantine : les messages non alignés sont mis en indésirable.
- • Au moins une clé DKIM valide publiée.
How to fix it
Marc, the DMARC copilot, finds every sender, writes the exact DNS, and walks your domain safely from p=none to p=reject.