> On Jul 31, 2017, at 1:39 PM, robg...@nospammail.net wrote:
>
>> Find out why you're rejecting the client's "MAIL FROM:" command.
>
> Huh. No idea what's causing the sender's FROM to be rejected -- should be
> an OK address.
>
>> This would typically be logged
>
> So it SHOULD be logged.
>
> By the handoff/smtpd instance right? Not by the postscreen in fron of it?
Of course.
> Like I mentioned I did turn on the "-v" for it. Nothing more.
The main effect of "-v" in most cases is to obscure the relevant logs
with lots of noise from the irrelevant logs. In most cases "-v" is
counter-productive. Policy rejection of the "MAIL FROM:" is covered
by routine (non-verbose) logging. Rejection of messages that exceed
the maximum message size limit (ESMTP SIZE=... option in MAIL FROM)
or have syntax errors in the sender address does not produce log
records, as it is too easy to flood the logs with these.
For the latter category "tcpdump" or debug_peer_list (origin-dependent
"-v") may be appropriate.
--
Viktor.
