Configure SPF, DKIM, and DMARC per Domain for Postfix using Cloudflare

[seth-reeser]

• SPF :white_check_mark:
• DKIM
• DMARC

https://petermolnar.net/howto-spf-dkim-dmarc-postfix/

• https://www.dmarcanalyzer.com/spf/checker/
• https://www.dmarcanalyzer.com/dkim/dkim-check/
• https://www.dmarcanalyzer.com/dmarc/dmarc-record-check/

Gmail Specific Utilities

• https://support.google.com/mail/answer/81126#authentication
• https://support.google.com/mail/answer/6227174
• https://postmaster.google.com/u/1/managedomains?pli=1