[Mimedefang] Dot com dot something

[Joseph Brennan]

Staring at this:


$re = '\.' . $bad_exts . '\.*$';


This catches harmless example.com.pdf and more complicated things.

I have forgotten what evil can be done with a trailing dot, but before
I commit foolishness by changing $re, I thought I'd ask.


Joseph Brennan
Columbia University Information Technology