Nice to know for ISPs: Exchange 2003 SP2 Greylisting bug
Martin Blapp wrote:
>
> Hi,
>
>> I can't believe that even Exchange would be unable to do a retry -
>> there are plenty of situations where a server might return a
>> temporary 45x error.
>
> The e
Martin Blapp wrote:
>
> Hi,
>
>> I can't believe that even Exchange would be unable to do a retry -
>> there are plenty of situations where a server might return a
>> temporary 45x error.
>
> The error isn't easy to reproduce. It seems that some conditions are
> necessary. It might be a race co
Am Donnerstag, den 21.06.2007, 09:49 +0200 schrieb Martin Blapp:
> Exchange never managed it to 100% comply with the existing RFCs. That
> hasn't changed at all. And it still looks like Microsoft doesn't handle bugs
> seriously if only a small to average userbase is affected. This bug has
> only m
Hi,
I can't believe that even Exchange would be unable to do a retry - there
are plenty of situations where a server might return a temporary 45x
error.
The error isn't easy to reproduce. It seems that some conditions are
necessary. It might be a race condition.
Exchange never managed it to
Martin Blapp wrote:
> We just had a case where we missed some mails from a vendor, and
> those mails now have arrived with three month delay. After some
> investigation we found the reason for the delay: the vendor is using
> Exchange 2003 SP2, which has a known, still unfixed bug. It causes
> out
4. remove MS Exchange as its unable to fulfill internet capabilities.
or
5. use a smarthost instead of connecting MS Exchange directly
to the internet :-)
--
Martin
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WORKAROUNDS
===
1. Write a script to restart the SMTP service at least once a day.
2. Modify the registry on the sender Exchange server, to change
the Glitch Retry key.
3. Clarify that there is no 3rd party AV software in the
environment which could be causing the issue.
4. remove
Hi all,
We just had a case where we missed some mails from a vendor, and
those mails now have arrived with three month delay. After some investigation
we found the reason for the delay: the vendor is using Exchange 2003 SP2,
which has a known, still unfixed bug. It causes outbound mail to domain
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