how tom allow attachments with 2 fullstops

[bas60]

We are getting more and more attachments with 2 full stops in the name
ie. annualreport.aspx.pdf these files are blocked

These are generally PDF's

is there any way to allow them?

What are the security issues

[darky83]

By default E.F.A. blocks the file as it might be that an executable is named as a zip file (myfile.zip.exe) which could be an virus.
If this is the case, the best thing to do in my opinion is to instruct the user to not use dots in filenames, if that is not possible then you can allow this.

Edit the file: /etc/MailScanner/filename.rules.conf
at the bottom you will see the following:

Code: Select all

# Deny all other double file extensions. This catches any hidden filenames.
deny    \.[a-z][a-z0-9]{2,3}\s*\.[a-z0-9]{3}$   Found possible filename hiding                          Attempt to hide real filename extension

Replace deny with allow and reload mailscanner.