SPF, DKIM and DMARC Configuration Guide
Improve delivery rates by correctly configuring email authentication records.
SPF
TXT record authorizing sender IPs. When using Pitbull, authorize gateway IPs via include.
DKIM
Validates message integrity with cryptographic signatures. Generate per-domain keys in the Pitbull panel.
DMARC
Reports SPF and DKIM alignment. Start with p=none monitoring, then tighten policy.