If you have not sent mail through VPOP in the past please contact
us first so we can enable your account to use us for SMTP
1. Open Thunderbird and click "Tools"
in the menu bar, then select "Account Settings."
2. Select your mail account and then click on Server Settings.
the Server name to mail.vpop.net.
the User Name to your email
address (e.g. firstname.lastname@example.org).
Under Server Settings check
off the box for Use secure connection
Select Outgoing Server (SMTP)
the Server Name to mail.vpop.net and set the Port to 587.
Check off the box to Use name and
password and enter your User
Name as your full email address (e.g. email@example.com).
Under Use secure connection
select the TLS radio button.
Thunderbird is now set to send through VPOP using smtp auth.