I have been asked a few questions about the Services from Mimecast in relation to their file attachment and extension filtering.
I hope that these are adequate answers for the questions:
However I am sure that Mimecast have a more than suitable FAQ on their website.
Q: If I rename the file extension of a jpg to mdf or something will it still be blocked?
A: Yes, regardless of the file extension Mimecast will look at what is inside the file. We used to use Mailsweeper and it did exactly the same thing.
Q: If I put several jpg files into a zip file will it get through?
A: No, Mimecast will scan the zip file and if your policies do not allow jpg or image files then the files will be stripped from the attachment, even if you rename the jpg extension, they will still not get through.
I also received the latest Outlook Connector yesterday which addressed the problems that people were having in Vista with UAC enabled. The temp folder that was originally located in C:\Program Files\Mimecast\Connector is now located with in the users profile. This also adds an extra layer of security if it is kept within the Profile.
I am still wondering if there is a way to configure the Outlook Connector through pulling the info through AD as having to configure for 270 will be a bit of a pain.
