Filter/Rules with rexep
Hi, I'm trying to create a filter rule to fight with spams. I have enabled catchall for my @mydomain.com and as expected suddently I'm getting a lot spams :)
I need advice or help to create a rule to REJECT any mails if the recipient is not in my list of accepted aliases. eg
So I tried regexp (!alias1|!alias2)@mydomain.com but this doesn't work.
Any idea how to make this work?