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http://bugs.exim.org/show_bug.cgi?id=731
Nigel Metheringham <nigel@???> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|General execution |Transports
OS/Version|Windows |All
Summary|massive Probleme wegen |Problem with pipelining
|kombinierter Kommandos |
--- Comment #6 from Nigel Metheringham <nigel@???> 2008-07-10 09:18:31 ---
Awaiting more information from reporter. We need at least debug logging of
sessions where this problem is seen, and potentially packet trace as well.
Configuration information for the sending machine would also be very useful.
If there are security implications to you of providing this amount of detail
please add a comment to this bug, and we'll see about other ways of handling
this - which will have to be providing that level of debug information without
having it posted to this bug entry. Without debug data we can not examine
this.
Please check there are no firewalls on your perimeter that are rewriting SMTP -
check that the initial SMTP banner and negotiation looks the same for affected
sites from both inside and outside your network. The most likely reason by
far for this type of problem is a broken SMTP proxy of some sort - in which
case you need to negotiate with your security/network/firewall manager with
an appropriate blunt instrument.
You can turn pipelining off as a work around - see the hosts_avoid_* series
of configuration options.
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