I have an old server with a couple of hosted domains. They should all be transferred to a newer server, but it will not be done immediately.
In the meantime I'd like to block one certain email address that keeps sending out spam. I know the sending email address, which doesn't exists on the server itself (at least not in Workgroup Manager).
My question; Is there some way to block this user from using my server to send mail?
I have only looked in th GUI, but I guess that there are lots of preferences and stuff that is reachable in Squirrelmail/Postfix...
In the meantime I'd like to block one certain email address that keeps sending out spam. I know the sending email address, which doesn't exists on the server itself (at least not in Workgroup Manager).
My question; Is there some way to block this user from using my server to send mail?
I have only looked in th GUI, but I guess that there are lots of preferences and stuff that is reachable in Squirrelmail/Postfix...