>What is the best syntax to use for message rules to stop double extension
>file attachments?
FWIW, there are a lot of legitimate files with double extensions -- the
most common is probably "www.yahoo.com.lnk", but there are also files such
as "may.1999.results.xls". So even if you do block double extensions, you
will likely block some legitimate files, too.
-Scott
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