Jan. 16, 2018
10:54 a.m.
Arnt Gulbrandsen writes:
At this point, we are only looking at the suggestion of using the alias for an ASCII address when encountering a non-EAI MTA. Can either Exim or Postfix do this?
Postfix cannot. IIRC Exim cannot either, but I might have missed something. (I did read the relevant source code.)
I can put that stronger: I've either worked on or read the source of seven programs/libraries that will send EAI mail, and I don't think any of the seven would be able to fall back to an alternative address. Arnt