The Health Check feature allows admins to verify that Defend is properly configured and functioning as expected. It runs a series of tests on both inbound and outbound email processing.
Tests Performed
The health check runs the following tests:
- Inbound Email Tests
- Confirmation of test email receipt
- Verification of Defend banner presence
- Check for the absence of multiple disclaimers
- Check for the absence of multiple subject phrases
- Verification of email authentication
- Outbound Email Tests
- Confirmation of email forwarding
- Verification of banner removal
- Check for the absence of duplicate disclaimers
- Check for the absence of duplicate subject phrases
How to Run a Health Check
Warning:Only run one health check at a time.
To run a health check, follow the steps below:
- Log in to the Defend admin console.
- Navigate to Settings > Health Check.
- Select Run Health Check.
- Enter an internal test user email address.
- Select Add Recipient and enter the email addresses of the test email recipients.
- Select Run Health Check.
Monitoring Progress
To check the status of a health check, follow the steps below:
- Select the health check line item.
- Select Refresh to see updated progress.
Results
If all tests pass successfully, no further action is required. Any failed tests will be highlighted and may need admin attention.
Note:If a test email fails, our system automatically initiates a retry process. This error typically occurs due to Microsoft 365 propagation delays. We'll retry sending the test email every five minutes for two hours. This process stops when the test email is successful or the two-hour window expires.
This approach ensures your environment is properly configured for Defend deployment while preventing excessive email traffic. If propagation times are unusually long, you may filter these test emails into a separate folder.
See the help articles below for assistance with troubleshooting any failures: