Graylog: Configuring email notifications

This documentation is part of the Alerting guide. You can view the complete guide here: How to send Graylog alerts by email, Slack, or Mattermost.

👋 Welcome to the Stackhero documentation!

Stackhero offers a ready-to-use Graylog cloud solution that provides a host of benefits, including:

• Unlimited and dedicated SMTP email server included.
• Effortless updates with just a click.
• Customisable domain name secured with HTTPS (for example, https://logs.your-company.com).
• Optimal performance and robust security powered by a private and dedicated VM.

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Every Graylog instance provided by Stackhero comes with an integrated email server, allowing you to send unlimited emails directly from your instance at no extra cost.

To configure an email notification, you may wish to follow these steps:

1. Access your Graylog service, go to Alerts > Notifications, and click the Get started! button or select Create notification.

2. Enter a title for your notification and select Email Notification under Notification type.

3. In the Sender field, enter noreply@<yourGraylogDomain>. Be sure to replace <yourGraylogDomain> with your actual Graylog domain name, which is typically in the format <XXXXXX>.stackhero-network.com.

   Important: Make sure you use your Graylog domain to avoid errors when sending emails.

4. Specify the email address where you wish to receive alerts in the Email recipient field.

   Example of email configuration

5. Click the Execute test notification button to check that everything is working correctly. Once confirmed, complete the setup by clicking Create.

Congratulations! Your email notification is now configured and operational!

Handling the error: "Sending the email to the following server failed: postfix:25"

If you encounter the error Error: Notification has email recipients and is triggered, but sending emails failed. Sending the email to the following server failed: postfix:25, it is most likely because the sender field is not correctly formatted. It should follow the pattern <something>@<yourGraylogDomain>. "Something" can be any value (such as "noreply"), but "yourGraylogDomain" must match your Graylog service domain, usually presented as <XXXXXX>.stackhero-network.com.