I'm running a Linux mail server and would like to stop spam emails from reaching the mail clients.
My topology looks like this:
Client network <-> Mail Server <-> Internet
On the mail server I modified /etc/mail/access
and then executed the following:
makemap hash /etc/mail/access.db < /etc/mail/access
However, Clients still receive email from email@example.com
Could someone please tell me what the problem is or how I can stop emails from firstname.lastname@example.org
to reach the Clients.
Thanks in advance.