Unable to read mail messages with mail client

Hi,

I setup a dedicated server using Ubuntu 10.04 and ISPConfig 3. I think I have all working fine but the emails. The domains are resolving fine (all of them) and when I check for messages using mail2web there they are. But when I try to use Thunderbird I receive the error: wrong username / password.

The records of the DNS are:

A mail myIPaddress 0
A misviejosamigos.co.cr. myIPaddress 0
A www myIPaddress 0
MX mydomain.co.cr. mail.mydomain.co.cr. 10
NS mydomain.co.cr. ns1.mynameserver.com. 0
NS mydomain.co.cr. ns2.mynameserver..com. 0

If my email address is "[email protected]", I'm configuring the client this way:

Username: esteban
Incoming server: mydomain.co.cr

I've also tried using mail.mydomain.co.cr and I receive the same error.

Please, help.

 

The username must be [email protected], not just esteban.

 

Thanks...

That was the problem... thanks for your help.