MS renames xlsx as xls in quarantine?

Julian Field MailScanner at
Thu Nov 25 11:29:56 GMT 2010

I would advise doing some basic sanity checks on your setup. There is 
nothing in MailScanner that can possibly do this, unless you are running 
the latest beta releases which can quietly rename attachments to 
"disarm" them while still allowing them to reach the recipient.

Never seen this one before, something strange is happening in your setup.


On 25/11/2010 08:22, Garry Glendown wrote:
> Hi,
> I've set up a script to download quarantined attachments, which works
> fine ... anyway, I came across a problem recently which I can't really
> find a reason for ...
> A mail attachment was received with an .xlsx file, which was
> quarantined. Anyway, the original filename wasn't kept, but rather
> renamed to .xls, which can mess up certain Excel versions when loading
> (Excel 2010 will load it none the less, albeit with a warning).
> I was trying to find some sort of setting that may have caused this
> behavior, but couldn't see anything in the filename rules etc ...
> Any idea what's going wrong?
> Thanks, Garry


Julian Field MEng CITP CEng
Buy the MailScanner book at

Need help customising MailScanner?
Contact me!
Need help fixing or optimising your systems?
Contact me!
Need help getting you started solving new requirements from your boss?
Contact me!

PGP footprint: EE81 D763 3DB0 0BFD E1DC 7222 11F6 5947 1415 B654
Follow me at and

This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.

More information about the MailScanner mailing list