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Date: Fri, 11 Jul 1997 14:22:13 +0400
From: "Mikhail A. Sokolov" <mishania@demos.su>
To: Ollivier Robert <roberto@keltia.freenix.fr>
Cc: chat@freebsd.org
Subject: Re: X-UIDL headers
References: <199707101458.HAA05996@hub.freebsd.org> <19970711014750.46737@keltia.freenix.fr>
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In-Reply-To: <19970711014750.46737@keltia.freenix.fr>; from Ollivier Robert on Fri, Jul 11, 1997 at 01:47:50AM +0200
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On Fri, Jul 11, 1997 at 01:47:50AM +0200, Ollivier Robert wrote:
> According to Jonathan M. Bresler:
> > anyone able to give mye nay info about the "X-UIDL:" header?
> 
> It seems to be generated by many POP and/or IMAP servers. I'd say junk any
> mail with it. I've yet to see a non-spam message with it.

I fgreped our quite big spool, - it is quite usual for clients with windows
mailers to have this X-UIDL header attached to their mails. Correct, pop/imap
servers add this, and yes, they can be recompiled not to do this. 

Unfortunately, it's quite hard to dig out the nessecity of this header, but 
still, I doubt if it's correct to trash such mails, - you risk to loose half
of your windows-based folk's mails. I tryed to correlate fgrep 'X-UIDL' results
with the 'X-Mailer' fgrep results - it's the only what fits - almost 90% of
mails issued on _any_ type of windows have those X-UIDL. Still, I am stuck with
the following now, the scheme of mails passing: 
<client/windows> - <smtp> - <sendmail&&procmail> <-- NO pop or imap servers
here, and still those mails have X-UIDL.

> Ollivier ROBERT -=- FreeBSD: There are no limits -=- roberto@keltia.freenix.fr

-mishania