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 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.
• Customizable domain name secured with HTTPS (for example, https://logs.your-company.com).
• Optimal performance and robust security powered by a private and dedicated VM.

Save time and simplify your life: it only takes 5 minutes to try Stackhero's Graylog cloud hosting solution!

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.