I can not send emails from Thunderbird

Hello everybody. I installed Virtualmin, and I can send and receive emails from Usermin.

From email’s clients (for example Thunderbird), I can receive emails but do not send. The Thunderbird message:

Configuration could not be verified - Is the username or password wrong?

I have no error in /var/log/maillog. My Thunderbird’s configuration:

Your name: testing@testing.com Email address: testing@testing.com Incoming: IMAP Server hostname: mx.testing.com Port: 143 SSL: None Authentication: Normal password Outgoing: SMTP Server hostname: mx.testing.com Port: 25 SSL: None Authentication: Normal password Username: testing



If you look up those users by going into “Edit Users” in Virtualmin, what username does it show in the “IMAP / POP3 / FTP login” column for that user? Is it in the format testing@testing.com, or does it show something like “testing.testing”?


Hi Eric, thanks for your reply.

The users are:

Name: testing
IMAP / POP3 / FTP login: testing
Real name:

Name: otheraccount
IMAP / POP3 / FTP login: otheraccount.
Real name: otheraccount

I try with this user and it do not work

In this case the username is probably just “testing”. If it was “testing@testing.com”, Virtualmin would show that in the user screen.