[Trisquel-users] configuring email after installation

[scmaccal]

I finished a Trisquel 6 Server install without configuring email. Now I find  
that I want to fetch and send email from an email service on the Internet.  
I'm good to go with the setup of fetchmail, mutt etc. but my mail directory  
is not working properly. Is there a way to run the email configuration  
program from an already installed system?