Attachments messed up going to Exchange

[Scott Silva]

Michael Crider spake the following on 5/30/2007 9:19 AM:
> We migrated from a hosted mail server to an in-house server one month
> ago, running CentOS 4.4, MailScanner 4.59.4, Postfix 2.2.10, ClamAV and
> SpamAssassin 3.1.7, initially installed from the howto at hughesjr.com,
> then fine tuned with the awesome info in FSL's manual and the mail list
> archives. Today is the first day with a problem that I haven't seen
> covered (may have overlooked). One of our users is trying to send an
> attachment to the USDA. She has tried both xls and pdf files. In both
> cases the person receiving it says he is only getting a .dat file.
> According to his email headers, he is using Exchange 6.0, and our user
> is using Thunderbird 2.0. She can email them to other users without a
> problem (have tested both local users and my home email account). His
> replies have all come back with the original email inline (no headers or
> attachments), so I can't tell where the problem is. She had emailed
> attachments to him as recently as April 3 through the hosted server
> without a problem, but I have no idea how it was configured (I know it
> ran SpamAssassin, but nothing beyond that). Has anyone else seen
> anything like this, or have suggestions on what I should look for? I
> don't know how computer literate he is, so I don't know how much to ask
> him (and Washington DC is a long way from Missouri for me to run over
> and look myself :).
> 
> Thanks for any advice.
> Michael
> 
Have the sender try to zip the file first if you can walk them through that.
It sounds like receiver's postmaster might have tweaked something on their
Exchange server. You can also try and send the same attachment from a free
mail account like yahoo or Gmail and see if the receiver has the same problem.

That way you can see if you can eliminate your server from the equation.

-- 

MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!