attachment checking (Full Version)

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zoranm74 -> attachment checking (9.Dec.2005 5:38:07 AM)

Does attachment checking rule checks headers of attachments or just extensions?
I want to stop wmv files and I sent one as a txt file. It just went out.



Nicks -> RE: attachment checking (14.Dec.2005 9:16:56 AM)

Hi,

Attachment checking does check for both the file header and the file extension. However it can only identify a limited ammount of file-types from the file header - the ones which are most malicious, and some others like mp3, doc, xls, zip etc. Wmv i not a file-type that MailSecurity currently identifies from its file header.



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