squirrelmail - How to solve error message about squirrel mail (ERROR: Connection dropped by IMAP)

I was setup squirrel mail in centos 6.4and, i was installed imap(dovecot), squirrelmail, sendmail completely.and open, port 110, 143, 25.and, setting a squirrelmail about imap (through ./, i accessed a squirrel mail cite. ( domain/src/configtest.php).... you can read below text.SquirrelMail configtestThis script will try to check some aspects of your SquirrelMail configurationand point you to errors whereever it can find them. You need to go run conf.plin the config/ directory first before you run this script.SquirrelMail version:1.4...Read more