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How to configure email settings

To use features such as Reporting, Debug alerts, Enterprise dashboard alerts and Crash protection, first configure the email settings in FusionReactor.

The settings in FusionReactor are per instance, so if you have five instances of FusionReactor they each have their own settings.

To copy the configuration of FusionReactor from one instance to another:

📖 Learn more: Copying FusionReactor configuration between instances.

With this approach you can configure one instance of FusionReactor then copy the configuration across all five instances.

Configure email settings

🔎Find it: FusionReactor > Settings > Email Settings

Step 1: To configure the email settings in FusionReactor, access the Email Settings by navigating to: FusionReactor menu (on the top left hand side) > Settings.


Step 2: Configure the SMTP settings for your chosen mail server.

💡 Tip: To retrieve the SMTP configuration on most public mail servers, simply Google: SMTP server gmail/gmx/outlook/etc....

Step 3: Once your SMTP server details have been entered, save the settings and select Send Test Email.

Step 4: Sending a test email, should display the following green banner:

Email Success

You will now start to receive Reporting and Enterprise dashboard alerts and can configure Crash protection and Email breakpoints.

What to do if the test email fails to send


There are many reasons that sending an email from FusionReactor may fail, including:

  • The protocol being used is incorrect
  • The authentication credentials to the mail server are incorrect
  • The mail server configuration is correct
  • The mail server blocks emails from the specified from address


FusionReactor is only able to detect a send failure if its attempt to send a mail to the SMTP server fails.

It may be that we are able to send a mail to the SMTP server, but the mail server itself rejects the email. In this case we are unable to detect that the operation failed.

If this is the case we will show Email sent successfully, but the email may never arrive in your mailbox. Please contact your mail server administrator.

Any error FusionReactor sees when an attempt to send an email is stored in the reactor.log. In this log file you will see the cause of the send failure and be able to diagnose what is stopping emails from being sent.

Configuring Gmail with FusionReactor

If you are using Gmail either on a personal or business account, you can configure emails with a configuration similar to:

Email Gmail Example

The fields from the screenshot above are represented in a table below:

Field Value
From Address
To Address
Mail Server
Mail Server Username
Mail Server Password password
SSL Authentication Disabled
TLS Authentication Enabled
Host Name Not specified


You may be required to enable less secure app access on your Google account. To do this, go to the security tab on your Google Account page, then scroll to the Less secure app access section.

Need more help?

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