Everything is configured and 90% working. Postfix SMTP is fine. I can send mail without problem. The user on the server can receive mail without problem (mail shows in users maildir) I can telnet to the pop3 server via SSH with the following command: telnet localhost 110. When I run "telnet mail.justoutboards.com 110" via SSH, I receive the following error: " telnet mail.justoutboards.com 110 Trying 69.37.171.190... telnet: Unable to connect to remote host: Connection refused" I cannot telnet to pop3 server from outside the environment using either IP address or FQDN. Any help would be greatly appreciated.
Thank you for the help. I have control over the firewall on this circuit and I have allowed port 110. Any other thoughts? Thank you for the help. Todd
Please supply the output of this Code: netstat --ntlp And you can also run a tcpdump and see what is happening to the packets Code: tcpdump -tlni eth0 port 110 Then connect from outside.
netstat output: Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 3973/mysqld tcp 0 0 0.0.0.0:10000 0.0.0.0:* LISTEN 4600/perl tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 4409/apache2 tcp 0 0 0.0.0.0:81 0.0.0.0:* LISTEN 4374/ispconfig_http tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN 4578/proftpd: (acce tcp 0 0 10.10.10.125:53 0.0.0.0:* LISTEN 4545/named tcp 0 0 127.0.0.1:53 0.0.0.0:* LISTEN 4545/named tcp 0 0 127.0.0.1:953 0.0.0.0:* LISTEN 4545/named tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 4501/master tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 4409/apache2 tcp6 0 0 :::993 :::* LISTEN 4087/couriertcpd tcp6 0 0 :::995 :::* LISTEN 4122/couriertcpd tcp6 0 0 :::110 :::* LISTEN 4100/couriertcpd tcp6 0 0 :::143 :::* LISTEN 4067/couriertcpd tcp6 0 0 :::22 :::* LISTEN 3879/sshd tcp6 0 0 ::1:953 :::* LISTEN 4545/named tcp6 0 0 :::25 :::* LISTEN 4501/master I dont appear to have tcpdump installed.
