IMAP Account Information
Name: First Last
Email: address@yourdomain.name
Description: My VIRTBIZ hosted email
Incoming Mail Server
Host Name: www.yourdomain.name
User Name: username
Password: password
Outgoing Mail Server
SMTP
Then click for more options, then click Primary Server.
Server: ON
Host Name: www.yourdomain.name
User Name: username
Password: password
Use SSL: OFF
Authentication: Password
Server Port: 587