- Removed the Google Postmaster TXT record example
- Increased clarity to follow the DMARC statistics guide to deploying, as they may not all utilize TXT files and the process can vary per service or tool.
- Increased clarity that other services and tools are available for DMARC statistics than just the listed few
- Add a header to FQDN for separation from the DMARC section under Misc.
- Edited DMARC section with more resources than my original PR.
- Moved some stuff around and added in the DMARC section.
- Added a table to the DMARC section to match the above.
Added headers to the advanced dns configuration table as well as dkim spft and dmarc sections, for better readability and clarity, as well as to match the top portion which has headers.
Also added MultiRBL.valli.org as a resource for testing DNSBL, RBL, and FCrDNS.
And lastly added Postmark as an alternative suggestion for gmail's postmaster under misc.
