Prolateral Consulting Ltd
Prolateral Consulting Ltd
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Setup examples

Prolateral offers primary and backup domain (DNS) services, with servers in key geographic locations providing the best service possible.


How do I set up outbound SMTP on Thunderbird?
How do I set up outMail on Thunderbird?

Solution:   This article has been deprecated 

Note :-
This article has been deprecated and replaced with a new article - How do I set up outbound SMTP on Thunderbird 91.x (2021)

Follow the guide below to configure Thunderbird to send emails using the outMail service.

Launch Thunderbird from the Desktop or from the Start > All Programs menu. The icon looks like the one shown below.

Mozilla Thunderbird icon

Go to the Tools menu and select Account Settings….

Thunderbird Account Settings

A window entitled 'Account Settings' will open, select the "Outgoing Server (SMTP)" tab.

Click on the desired account and select edit.

Thunderbird Outgoing Server Settings

Another window will appear called "SMTP Server".

Set the "Server Name" to

Select the option "Use name and password "

Enter the username you were provided for outMail.

Ensure the "Use secure authentication" option is unchecked

Click OK to return to the previous window

Mozilla Thunderbird SMTP Server Settings

Click OK and Close to finish. The first time you send a message you will be prompted for the password.


Video Tutorial


Summary of server details

Outgoing server

As provided in your signup email.

Outgoing server protocol


Outgoing server port

25, 465, 587, 2525 or 8025

Authentication Type

Basic Authentication, SSL and TLS supported


As provided


As provided

Uninstalling / Removing outMail

To change your outgoing SMTP server settings away from outMail simply follow the setup guide above and where asked to enter the outgoing SMTP mail server address and login credentials please use those provided to you for the service provider you are moving to.

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