Description

AWS SES configuration changed, Instead of just a warning pointing people to the standard relay doc, I've re-written it with some guidance on gathering the right information from AWS and getting the configuration correct.

This doc update was requested as part of the discussion on this issue:
#2091 (comment)

Type of change

• Improvement (non-breaking change that does improve existing functionality)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (README.md or the documentation under docs/)
• If necessary I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

(ok, this is just a doc change - most of the checklist is N/A)