Hello Mamadou,
Yes, there are logs available that can help troubleshoot Azure Graph API email integration issues.
A good place to start is the Operational Console (Admin > Troubleshooting > Operational Console), where you can review operational events from the last 10 days. Filtering for email or integration-related events can help identify issues with specific mailboxes.
Some events to look for include:
- EMAIL-0008 – Mailbox unavailable
- EMAIL-0010 – Email permission error
- INTEGRATION-0001 – Integration in error state
- INTEGRATION-0004 – Email integration authentication error
- INTEGRATION-0005 – Email integration configuration issue
If the integration test succeeds but certain mailboxes still aren't receiving email, the issue is often specific to those mailboxes. Common causes include missing licenses, Exchange Online application access policies, or permissions preventing the integration from accessing the mailbox.
The Operational Console should provide more detailed error information to help narrow down the root cause.
Hope this helps!
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Cameron
Online Community Manager/Moderator
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