How to Remove X-headers

[Glenn]

Thanks for all the attention, but I'm afraid I still have the same problem.  
Regardless of the propriety of doing so, I would like to be able to filter 
headers using the "Remove These Headers" ruleset, and I can't get it to work 
with Perl regular expressions.  Joost's post seems to confirm that I am using 
an expression that should remove the X-MimeOLE: header, but it doesn't.  Can 
anyone shed light on this?  Thanks.   -Glenn.


---------- Original Message -----------
From: Joost Waversveld <joost at waversveld.nl>
To: MailScanner discussion <mailscanner at lists.mailscanner.info>
Sent: Thu, 12 Mar 2009 09:38:58 +0100
Subject: Re: How to Remove X-headers

> /^XMime.*\:/   would match XMime<something> (and not X-
> Mime<something>)
> 
> The regular expression should be /^X-Mime.*\:/
> 
> Best regards,
> 
> Joost Waversveld
> 
> Alex Broens wrote:
> > On 3/11/2009 10:50 PM, Glenn wrote:
> >> We use MailScanner and Postfix on a mail gateway server and forward 
> >> mail to an internal Microsoft Exchange 2003 server.  Evidently, 
> >> enough X-headers have accumulated in an Exchange database to cause a 
> >> problem, so we need to remove X-headers before they are forwarded to 
> >> the Exchange server.
> >>
> >> There is a line in MailScanner.conf that allows us to name whatever 
> >> headers we want to remove ("Remove These Headers"), but this raises 
> >> some questions.  If we just blanket remove all X-headers, won't this 
> >> defeat features of MailScanner that depend on MailScanner adding 
> >> headers?
> >>
> >> According to hints in the MailScanner rules directory, we should be 
> >> able to use regular Perl expresssions to create a ruleset to exclude 
> >> certain headers from the delete list.  My problem is that I don't 
> >> have a clue how to write regular Perl expressions.  From what I've 
> >> read online, for example, the lines below should be equivalent, but 
> >> when I use the Perl expression in the ruleset it doesn't work.
> >>
> >> From:  [ipaddress]  X-MimeOLE:    ##this removes the X-MimeOLE header
> >>
> >> From:  [ipaddress]  /^XMime.*\:/  ##this doesn't
> >>
> >> I know this isn't a Perl forum, but I'm hoping that someone who has 
> >> tried this can enlighten me.  If I could just get a simple expression 
> >> to work, I might be able to build what I need.  Thanks.   -Glenn.
> >
> > Before you start breaking MIME headers, who told you this or what MS 
> > KB article covers this?
> >
> 
> -- 
> Joost Waversveld
> 
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------- End of Original Message -------