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I am unable to create email server setup on my linode VPS. I am trying to setup EMail server using http://library.linode.com/email/postfix article for debian 6.0, because i thought might be it is working but after configuration dovecot for retrieving emails via IMAP, POP3 is not running. It shows: telnet localhost 110 Trying 127.0.0.1... telnet: Unable to connect to remote host: Connection refused

In dovecot configuration file, i am not using SSL protocols because i dont have SSL in my linode hosting, also article told me to ue saslauthd, but i am not using it so i don't configured it. After setup postfix, i configured dovecot but it shows an error while restart service says: unknown instance. I am read an article for fixing this issue from wiki2.dovecot.org, but not resolve the issue. Somehow i found a bug says dovecot 2.0 runnig on ubuntu 12.04, but i didn't find any article regarding this. Any help to do resolve this issue!!

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Is dovecot running? Type sudo service dovecot status to check if it is. – Calimo Sep 12 '12 at 16:11
@Calimo - dovecot service is running properly, there is a dovecot config problem, as i am not using SSL. – shihon Sep 12 '12 at 17:51
Then check your firewall first. Also make sure dovecot is listening on the pop3 port. Type netstat --listen -A inet and see if you have a line like tcp 0 0 *:pop3 *:* LISTEN. – Calimo Sep 14 '12 at 7:29

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