I've set up a Postfix installation based on http://flurdy.com/docs/postfix/ with modifications where I felt was sensible. Emails are being received fine until some users simply no longer receive ...
I followed the instructions at https://help.ubuntu.com/community/PostfixCompleteVirtualMailSystemHowto to setup a smtp and imap server on my local network. But when i try to login with thunderbird ...
I have configured postfix, courier on EC2 which is having Ubuntu 12. The necessary port's are opened SMTP, IMAP, POP3. Installed and configured postfixadmin. Added domain and some mail boxes. I am ...