Graylog: Configure email notifications

This documentation is part of the Alerting guide. View the full guide here: How to send Graylog alerts by email, Slack, or Mattermost.

👋 Welcome to Stackhero documentation

Stackhero provides a fully managed Graylog cloud solution designed for speed and simplicity. You can:

• Rely on an unlimited, dedicated SMTP email server included with your service.
• Apply updates effortlessly with a single click, with no manual intervention needed.
• Use a custom domain name secured by HTTPS (for example, https://logs.your-company.com), giving your team secure, direct access.
• Experience strong performance and security on a private, dedicated infrastructure with no shared resources or noisy neighbors.

Focus on your data, not your tooling: you can get started with Stackhero's Graylog cloud hosting solution in just a few minutes.

Every Graylog instance provided by Stackhero includes a built-in email server, allowing you to send unlimited emails directly from your instance at no additional cost.

To set up an email notification, you might consider following these steps:

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

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

3. In the Sender field, input noreply@<yourGraylogDomain>. Remember to replace <yourGraylogDomain> with your actual Graylog domain name, typically formatted as <XXXXXX>.stackhero-network.com.

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

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

   Example of email configuration

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

Congratulations! Your email notification is now established and operational!

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

Should 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 likely because the sender input is not correctly formatted. It should follow the pattern <something>@<yourGraylogDomain>. "Something" is flexible (like "noreply"), but "yourGraylogDomain" must reflect your Graylog service domain, usually presented as <XXXXXX>.stackhero-network.com.