[webmin-l] Cannot connect to mail server

[Kimberly <kim...@gm...>]

I have wasted several hours on this; unable to get Thunderbird set up to 
connect to the mail server.  I can ping the mail server so the mail 
server is up and running.  What are the default ports that Virtualmin 
uses for the Dovecot IMAP/POP server?  When Thunderbird does its test it 
comes back unable to connect.  What is the standard configuration when 
setting up Virtualmin?