Thanks for the reply, Here is my netstat,
[code] [root@localhost ~]# netstat -napt Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address Stat e PID/Program name tcp 0 0 0.0.0.0:110 0.0.0.0:* LIST EN 2017/dovecot tcp 0 0 0.0.0.0:143 0.0.0.0:* LIST EN 2017/dovecot tcp 0 0 0.0.0.0:111 0.0.0.0:* LIST EN 1275/rpcbind tcp 0 0 0.0.0.0:51506 0.0.0.0:* LIST EN 1293/rpc.statd tcp 0 0 0.0.0.0:22 0.0.0.0:* LIST EN 1476/sshd tcp 0 0 127.0.0.1:25 0.0.0.0:* LIST EN 24048/master tcp 0 0 0.0.0.0:993 0.0.0.0:* LIST EN 2017/dovecot tcp 0 0 0.0.0.0:995 0.0.0.0:* LIST EN 2017/dovecot tcp 0 0 192.168.59.246:143 192.168.59.1:57141 ESTA BLISHED 2222/imap tcp 0 0 192.168.59.246:22 192.168.59.1:55746 ESTA BLISHED 1698/0 tcp 0 0 192.168.59.246:143 192.168.59.1:57128 ESTA BLISHED 2217/imap tcp 0 0 192.168.59.246:22 192.168.59.1:59458 ESTA BLISHED 24797/1 tcp 0 0 192.168.59.246:143 192.168.59.1:57083 ESTA BLISHED 2206/imap tcp 0 0 :::111 :::* LIST EN 1275/rpcbind tcp 0 0 :::22 :::* LIST EN 1476/sshd tcp 0 0 :::42239 :::* LIST EN 1293/rpc.statd [/code] The 192.168.59.246 is not listen on port 25. How can I listen on port 25 with 192.168.59.246? Best Regards, On Tue, Feb 7, 2012 at 8:51 PM, Dudi Goldenberg <d...@kolcore.com> wrote: > Hi Andre, > >>Hi Dudi, >> >>Thanks for the reply. It shoes "lo", but I have hide it in the e-mail. >>Some clues on what can I test to see what is blocking the port 25? > > Did you try 'netstat -napt' to verify that the machine is indeed listening on > port 25? > > If not - then the logs are your next place to look for errors. > > Regards, > > D. >