Starting in mid February 2024, gmail tightened up its policies and I for one
started getting bounced email.
After about 4 lots of 12 hour days I figured out I was not setting
errors_to= in my userforward
so my "RCPT TO" envelope headerwas wrong/missing.
Having fixed that, I now started getting failures sent to my postmaster
(who I'd pointed errors_to at)
------------- cut here------------
could not be delivered to one or more of its recipients. The following
address(es) failed:
auser@???
(generated from auser.home@???)
host smtp.forwardemail.net [2001:19f0:ac01:d3c:5400:4ff:fe72:47c4]
SMTP error from remote mail server after end of data:
550 From header must end with @mydomain.com
------------- cut here------------
The phrase "From header" is suitably vague, do they mean the "MAIL
FROM" envelope header
or the From header in the mail body headers ?
This only seems to effect mails that have been forwarded via a a users
~/.forward.
What I REALLY REALLY would like to do is watch the SMTP conversation
between my exim4 and its smarterhost
(it's probably something I'm sending, so I want as much to see *my* side
of the conversation)
I can see over many years people have been asking to do this and been
told to use wireshark....which I eventually
did. However , in the past this was fine but nowadays it does a STARTTLS
and I can see no more.
Is there really no way I can see the SMTP conversation? If I could just
see what I sent it before said "error"
I feel I could save another block of long nights.
--
Graeme
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