Currently when a message has been blocked because of it's content (zip file) I or the customer needs to login to the spamfilter and download the file. Then send it to the person that it was send to.
Is it possible to release the zip file with the button "Release message"? The message is now being re-send, however, the zip file isn't being send.
This is the current behavior, and has been designed like this to avoid the spread of bad attachments. In this picture the message type makes the difference: it's only possible to release rfc822 types.
In a future firmware we may plan to release the whole message, including the attachments, but it won't be in firmware 48.