jlftl:
> Thank you very much for the responses!
>
> This is a small, personal setup with low traffic so I will definitely
> explore using notify_classes to try to get more feedback on the failures.
>
> Remote server legitmacy - *.dbsintl.net appears to be a third party hosting
> solution for small businesses. In the example provided before, I can
> correlate the timestamps in my mail.log to attempts to generate e-mails from
> a particular website to myself (e.g. updating my e-mail address, etc.).
>
> Coupled with the failure to receive mail from nabble, I have to assume the
> problem is on my end.
>
> Here's the output from postconf -n (with my server/domain names redacted):
If this is the server that logs
unknown[104.37.111.105] ehlo=1 mail=0/1 quit=1 commands=2/3
but no logging about rejected commands, then there is no Postfix
setting that would change the result.
To see the client's MAIL FROM command you can turn on verbose logging
with
postconf debug_peer_list=104.37.111.105
or use tcpdump as described in http://www.postfix.org/DEBUG_README.html.
Wietse
