I have a very strange bug using qmail...
Here is a very breif description of my configuration.
In my lan, I use 3 qmail servers running under Linux. It works great ;-) !
Whenever an e-mail is not internal to my company, the email is processed on
a separate mail server that is located in a DMZ. This mailer redirect the
mail to the proper SMTP relay.
On the other way around, all the incoming mails are processed on this
server and redirected trhough the firewall to the relevant site.
All this works great in 95% of the case. The bug occurs when a SMTP client
running une windows tries to communicate with my mail server. It generates
hundreds of 500 Command Unrecognized
So, at the end of the day, I can't receive any mail from servers running
under windows.
As it works fine when a unix client talk through the firewall, I dod'nt
know how to handle the problem.
If you want to see the bug, you can try a telnet 212.180.16.58 on port 25
from a windows machine and try the same thing from a unix machine. You will
see what I mean.
Any Idea ???
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