Hello I am new but learning please be easy with me I am on my way to learning. I have followed falko's great tutorial Virtual Users And Domains With Postfix, Courier And MySQL (Ubuntu 7.10). I initially wanted to use dovecot instead of courier, had same problem with both which is # telnet localhost 25 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. It freezes here !! Hence reinstalled from scratch thinking I have messed it up and followed the tutorial step by step with courier this time. I have attached my main.cf and mail.log Any help will be really appreciated. Thanks in advance