Hi,

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
localhost.localdomain RELAY
localhost RELAY
127.0.0.1 RELAY
mydomain.com RELAY
mail.mydomain.com RELAY
192.168.1 RELAY
unwanted@domain.com REJECT

and then executed the following:
makemap hash /etc/mail/access.db < /etc/mail/access

However, Clients still receive email from unwanted@domain.com.

Could someone please tell me what the problem is or how I can stop emails from unwanted@domain.com to reach the Clients.

Thanks in advance.

Do you have the corresponding entries in sendmail.cf? Did you restart the sendmail process?

I do have the corresponding process in sendmail.cf as follows:

# Access list database (for spam stomping)
Kaccess hash -T<TMPF> -o /etc/mail/access.db

I have also restarted sendmail.

you can try setting up spamassassin.

read about it and get it here