On Tue, May 11, 1999 at 06:25:49PM +0200, DUGRES Hugues, I.T. manager at C.Q.E. wrote:
> 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.
I didn't have any problem telnetting to port 25 from a Windows machine and
entering commands. I also configured a Windows MUA to use your machine as an
SMTP server and that worked as well. (By the way, you're running an open relay
on that machine. You want to fix that.)
So if there's a problem, it's not with Windows itself, but more likely with a
particular Windows MUA or MTA. Do you know what kind of software is having this
problem with you?
Chris
