Hello ,
I am running CentOS 4.7 Final
I had WHMCS running on it with exim as the mail server, now I am not able to send /recive any email
if I type:
mail user@domain.com
Subject: test
bla bla .
Cc:
Enter
I dont get the email on my account!

Any help??
Thanks

Well, since you don't post any error messages, log files, or say anything about your configuration, how can anyone help you? Aside from checking the service to see if it's running, that's pretty much anyone can say with no further information.

I am sorry but I am still newbie with these things
what log file you want, (/var/log/mail)

when I make netstat -aon | grep :25 I got the a positive feedback

take a look in

I do tail /var/log/exim_mainlog
and the result is:

2009-06-06 04:25:27 cwd=/etc/csf 2 args: /usr/sbin/exim -bpc
2009-06-06 04:25:27 cwd=/etc/csf 4 args: /usr/sbin/exim -C /etc/exim_outgoing.conf -bpc
2009-06-06 04:25:27 cwd=/etc/csf 4 args: /usr/sbin/sendmail -f root -t
2009-06-06 04:25:27 1MCs9X-0000rx-63 <= root@aviation.arabic-av.net U=root P=local S=549 T="lfd on aviation.arabic-av.net: Email queue size alert"
2009-06-06 04:34:52 cwd=/etc/exim 2 args: exim doe@joe.com
2009-06-06 04:34:52 1MCsIe-0001RW-Sf <= root@aviation.arabic-av.net U=root P=local S=328
2009-06-06 04:35:06 cwd=/etc/exim 2 args: exim houssam.ballout@gmail.com
2009-06-06 04:35:06 1MCsIs-0001Sh-7k <= root@aviation.arabic-av.net U=root P=local S=342
2009-06-06 04:37:48 cwd=/etc/csf 4 args: /usr/sbin/sendmail -f root -t
2009-06-06 04:37:48 1MCsLU-0001ci-1S <= root@aviation.arabic-av.net U=root P=local S=972 T="lfd on aviation.arabic-av.net: System Integrity checking detected a modified system file"