Today we received the postcard.zip email in our system. Although we have sent a message to user's to not open the message I would like to remove the message from everyone's mailbox or prevent .zip attachments from opening.
Any suggestions on how this can be done with Exchange 2007 or if an Outlook policy can be set to prevent the .zip attachement.
For your scenario:
You can create a Transport Rule for the same, stating if postcard.zip is there in any mail block it/delete it etc etc. Every mail that reaches a Mailbox in Exchange 2007 goes via Hub Transport Server and these rules get applied to all.
ExMerge - my personal favorite when it comes to deleting specific mails/calender enteries, from all Mailboxes. It works great and you do not have to put in that extra amount of effort. The closes to explain the process that I am asking is mentioned here in this URL. (goto the last section on "Deleting Appointments", you can use same logic with your criteria
*Link Removed by ModernMatt 05 Jan 2009