Blocked Extensions in password-protected zip archives

Sattler, Tim tim.sattler at
Tue Aug 14 14:13:43 IST 2007

> I see. I wasn't aware that the file type can still be determined if
> archive is password-protected. 

Password-protected zip archives contain an index of contents which is 
still readable without knowing the password. I guess that MailScanner 
analyses this index.


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