[UA-EAI] UASG014 - Quick Guide to EAI

[Arnt Gulbrandsen]

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