Block certain attachment file types and allow the message to be delivered without the attachment
We would like to be able to block certain file types in inbound emails but allow a message itself to be delivered. We are seeing tons of htm attachments that are malicious. If we create a transport rule we can only block the entire message or send it for approval. Even the approval process assumes that I need to inform the sender (the bad guy here) that I refuse the message and there is no way to bypass it other than ignore/delete the approval request .We don't want to provide feedback, sent from my email address, to the bud guys. We need to drop unwanted attachments but deliver the message, possibly with explanation that an attachment has been blocked.