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 to setup a Mail Relay in BitWarden?
How to setup the SMTP Server in BitWarden?


Follow the guide below to configure BitWarden to use outMail as a Internet Mail Relay.

This article assumes you are running a self-hosted version of BitWarden and that you have already installed it and its working.

In order for BitWarden to send emails via outMail you need to change the SMTP Server settings.  This can be achieved by editing the global override environment variables.


Edit the file called bwdata/env/global.override.env and change the following lines


For the var called globalSettings__mail__smtp__host please enter the outgoing SMTP server you have been assigned to in your welcome email.  Likewise your outMail SMTP credentials will also be in your welcome email, these need to go in the vars globalSettings__mail__smtp__username and globalSettings__mail__smtp__password.

Please see the table below for alternative SMTP ports.  Outmail supports SSL so it is user choice if you want to enable SSL by changing the var globalSettings__mail__smtp__ssl to true.

For more information on the BitWarden global vars please see the documentation -


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


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