Custom SMTP
At present, you can trial the Openfort platform by sending up to 3 emails per hour via the built-in service. The default email service as a whole is offered on a best effort basis: we will do our best to maintain it and will review usage of the service on a regular basis to see if the email service should be continued.
As you progress toward production, you may find yourself wanting for a custom SMTP service in order to increase your limits. A custom SMTP server will allow you to set your own cap on the number of emails sent per hour.
Beyond rate limits, an SMTP server might also help with:
- Deliverability and Reputation Management
- Scalability
- Analytics and Tracking
- Compliance and Anti Spam measures
How to set up SMTP
Head over to Settings Page and hit "Enable Custom SMTP" under the SMTP Provider section.
Fill in fields below with the relevant details obtained from your custom SMTP provider:

SMTP providers
You can use Openfort Auth with any major SMTP provider of your choosing. Some SMTP providers you could consider using are:
Email templates
You can customize the email messages used for the authentication flows. You can edit the following email templates:
- Confirm signup
- Reset Password

Terminology
The templating system provides the following variables for use:
Name | Description |
---|---|
{{ .state }} | Contains a 6-digit One-Time-Password (OTP). |
{{ .email }} | The user's email address. |
{{ .redirectUrl }} | Contains the redirect URL to confirm the email address to a new account. |
Editing email templates
Edit your email templates on the Email Templates page. Below is an example for a verification of a sign up:
Subject: Confirm Reauthentication
Body:
<h2>Confirm reauthentication</h2>
<p>Enter the code: {{ .state }}</p>