Docs hub · Setup · Tools
Documentation & guides
Everything public for setting up and running email authentication with DMARC Shield.
Setup guides
DMARC, SPF, and DKIM step-by-step DNS setup — hub for all how-tos.
DMARC setup
Publish a safe monitoring record and collect aggregate reports.
SPF setup
Authorised senders, the 10-lookup limit, and avoiding permerrors.
DKIM setup
Enable signing per sender and confirm selectors on real mail.
Free domain tools
Live checks for DMARC, SPF, DKIM, BIMI, MTA-STS, TLS-RPT, and ARC readiness.
RFC standards
What each protocol does and what we monitor.
Blog & articles
Longer guides on reports, enforcement, BEC, bulk senders, and BIMI.
Resources index
Topics, latest posts, and paths for businesses and teams.
Plans & pricing
Monitor, Managed, Business, Fix Assist, and enterprise contact.
Signed-in customers: use the portal’s Support page for account help, or email support@dmarcshield.app.