Measured 2026-06-19 · public DNS
Is discover.com protected against email spoofing?
Partially — discover.com quarantines unauthenticated mail (p=quarantine).
B
DMARC
p=quarantine
SPF
~all
DKIM
4 selector(s)
Published record
v=DMARC1; p=quarantine; rua=mailto:dmarc_agg@vali.email,mailto:dmarc_rua@discover.com; ruf=mailto:dmarc_ruf@discover.com; fo=1What this means
- • Politique p=quarantine : les messages non alignés sont mis en indésirable.
- • SPF se termine par ~all (softfail) : acceptable en phase d’observation, viser -all à terme.
- • 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.