Alexey Loukianov wrote:
> Hello all.
>
> Spend some tome trying to figure out the cause of problem discussed in
> "Qmail Ver.1.3 yahoo/gmail (554 mail server permanently rejected
> message)" thread, and finally come to a decision to modify qmail-dk a
> bit to get some log feedback from it. In attachment there is first
> pre-alpha path that enables some very basic log messages from qmail-dk
> (goes to qmail-smtpd log) and some so-called "Custom SMTP repplies"
> in case of mail rejection.
>
> WARNING: You should consider it to be very-very-early-alpha-path, as
> it was done using quick-n-dirty way. It took about two hour to read
> docs, dig into sources and come up with a final code which compile
> successfully on my CentOS 4.4 server box.
>
> Log feedback from this patch allowed me to figure out that the message
> rejection problem we were discussing in initial thread was caused by
> DK_STAT_SYNTAX status returned from dk_eom() call.
>
> According to libdomainkeys sources:
>
> DK_STAT_SYNTAX, /* Message is not valid syntax. Signature could not be
> created/checked */
>
> I'm not sure but it looks like it means that message signature gets
> somehow corrupted during "check-spam-viri-forward-on" trip, that leads
> to a situation when libdomainkeys unable to check signature at all.
>
> ATM I've got a copy of a message that causes libdomainkeys to throw
> DK_STAT_SYNTAX when checking it, but I'm unsure how to check if this
> is a bad/garbled message problem, libdomainkeys fault of a bug in
> qmail-dk checking scheme. Does anybody know how to check one
> particular massage against libdomainkeys? Are there any standalone CLI
> utilities for it?
>
> P.S. I'm going to spend some more time over qmail-dk-log-patch on the next
> week,
> remastering code to be more readable/editable and providing more verbose
> logging with more info in it. Suggestions and beta-testers are
> welcome.
>
Alexey,
Many thanks for adding logging of DK processing. This has been a thorn for
quite some time.
I hope you noticed the logging that the CHKUSER module does. That does a
very nice job. I know that it's all in a separate module though, so I
imagine that it wouldn't necessarily be trivial do do things in qmail-smtpd
in the same way.
While you're in there, could you *please* look into the SPF processing too,
and if nothing else, add a log message for cases when the message is
rejected by SPF? This would be very helpful too.
Thanks again.
--
-Eric 'shubes'
---------------------------------------------------------------------
QmailToaster hosted by: VR Hosted <http://www.vr.org>
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
