I am trying to setup basic e-mail server just for me on my Ubuntu 12.04 following these guides. https://help.ubuntu.com/community/Postfix
I executed everything as it says in the tutorial. When I test with telnet from localhost everything seems fine, but when I try to connect with Thunderbird, it finds the settings automatically, even says that the certificate is invalid (which seems legit), but I get an error that my password is incorrect.
I can`t quite understand, is my mailbox linked with my linux account or I have to create a new user for this ? What can I do to see what the problem is ?
I have almost no idea what I am doing, so ... any help will be usefull.