Products: IMail Server Plus, IMail Server Premium, IMail Server
How to Block Messages with No Subject
I am getting a lot of spam that has no subject line or a blank subject. How can I delete these messages.
Create an inbound rule as follows:
This searches the Header to see if there is a Subject: line and that it contains any word characters or any non-white space, if not, delete it.
Article ID: 000002636