Re: [exim] Some Emails to gmail now hang

Tricky to guess at. Turn off more features, I guess.
You already tried chunking. Next would be fastopen, then pipelining.

However, given it was right after all the data (even in non-chunking)
one has to wonder if it's a content-check of theirs going wrong.

Does a given failing message get through on a later retry,
or fail for ever?


I guess another thing to try would be to build your own Exim
from source, in case there's some fix Deb haven't picked up.
Unlikely, though.
--
Cheers,
Jeremy