Just finished going through the Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Ubuntu 12.10) post and again I'm amazed at the thoroughness of your guides. Thank you for all that you do! However I'm getting stuck so close to the end, and I'm not sure what could be causing the error. I've gotten to the end where I'm trying to login as the test user created to squirrelmail but am getting the error "ERROR: Connection dropped by IMAP server. " Here is the results from a netstat -tap: Code: root@mail1:/var/log# netstat -tap Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 *:http *:* LISTEN 4319/apache2 tcp 0 0 *:ssh *:* LISTEN 2519/sshd tcp 0 0 *:smtp *:* LISTEN 27367/master tcp 0 0 localhost.localdo:10024 *:* LISTEN 1660/amavisd-new (m tcp 0 0 localhost.localdo:10025 *:* LISTEN 27367/master tcp 0 0 localhost.localdo:mysql *:* LISTEN 7930/mysqld tcp 59 0 localhost.localdo:40045 localhost.localdo:10025 CLOSE_WAIT 1665/amavisd-new (c tcp6 0 0 [::]:ssh [::]:* LISTEN 2519/sshd tcp6 0 0 [::]:smtp [::]:* LISTEN 27367/master tcp6 0 0 [::]:imaps [::]:* LISTEN 21734/couriertcpd tcp6 0 0 [::]:pop3s [::]:* LISTEN 21802/couriertcpd tcp6 0 0 [::]:pop3 [::]:* LISTEN 21765/couriertcpd tcp6 0 0 [::]:imap2 [::]:* LISTEN 21697/couriertcpd I've made sure to replace the mail_user_password in all of the references in the walkthrough (At least I'm pretty sure I did!) and everything seems to be working correctly, telnet results: Code: root@mail1:/var/log# telnet localhost 25 Trying 127.0.0.1... Connected to localhost.localdomain. Escape character is '^]'. 220 my.hidden.host ESMTP Postfix (Ubuntu) ehlo localhost 250-my.hidden.host 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH PLAIN LOGIN 250-AUTH=PLAIN LOGIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN quit 221 2.0.0 Bye Connection closed by foreign host. Anyone have any ideas on where I should start troubleshooting this? imap I'm guessing, but could use some guidance. Also I have sent each of the test account's I've created a test email using the mailx command as stated in the guide. Thanks in advance!