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When using the command Test-Mailflow it always fails.
TestMailflowResult : FAILURE
I get the email but the command fails.
Is this command supposed to work in Hybrid scenarios? I don't see how it does a confirmation.
All email is flowing like it should so it feels like it's a bad command.
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Hello, @ComputerHabit,
Is there any update on this thread? If the issue has been resolved, please mark the helpful replies as answers, this will make answer searching in the forum easier and be beneficial to other community members as well. Thanks for your understanding.
Best Wishes,
Alex Zhang
Hello, @ComputerHabit,
Noted that you have not followed up on this case for a long time. Just circling back to check to see how things are going on with this thread. Should you need more help on this, you can feel free to post back.
If the answer is helpful please click on ACCEPT ANSWER as it could help other members of the Microsoft Q&A community who have similar questions and are looking for solutions.
Best Wishes,
Alex Zhang
Hello, @ComputerHabit,
Welcome to the Microsoft Q&A platform!
The “Test-Mailflow” command in Exchange is used to test the mail flow in your organization. In a hybrid scenario, it may not always work as expected due to interactions between the local server and Office 365, or other configurations may be required. Here are some steps you can take to try to troubleshoot and possibly resolve the issue:
1.Check mailbox database operation: Ensure that the mailbox databases and servers involved are in order.
Get-MailboxDatabaseCopyStatus
Get-MailboxServer
2.Check Hybrid Configuration and Connectors: Ensure that the hybrid configuration settings are correct. The Hybrid Configuration Wizard (HCW) should be run to establish the necessary connectors and settings. Make sure the connectors between the on-premises environment and Office 365 are properly configured.
Get-SendConnector
Get-ReceiveConnector
3.Permissions: Ensure that you have the required permissions to run this command (Find the permissions required to run any Exchange cmdlet | Microsoft Learn). Sometimes insufficient permissions can cause the command to fail.
4.Latency and Timeouts: Check the “ExecutionTimeout” and “ErrorLatency” parameters. If the test message takes too long to be delivered, the command might time out and report a failure even if the email eventually arrives.
5.Diagnostic Logging: Enable diagnostic logging to gather more details about the issue (Set-EventLogLevel (ExchangePowerShell) | Microsoft Learn).
If the answer is helpful please click on ACCEPT ANSWER as it could help other members of the Microsoft Q&A community who have similar questions and are looking for solutions.
Thank you for your support and understanding.
Best Wishes,
Alex Zhang
Hello, @ComputerHabit,
If an answer has been helpful, please consider accepting the answer to help increase visibility of this question for other members of the Microsoft Q&A community. If not, please let us know what is still needed in the comments so the question can be answered. Thank you for helping to improve Microsoft Q&A!
Best Wishes,
Alex Zhang
Hello, @ComputerHabit,
Is there any update on this thread? If the issue has been resolved, please mark the helpful replies as answers, this will make answer searching in the forum easier and be beneficial to other community members as well. Thanks for your understanding.
Best Wishes,
Alex Zhang
Hello, @ComputerHabit,
If you need further help, please feel free to reply this post directly so we will be notified to follow it up.
Just checking in to see if above information was helpful, if the issue has been resolved, please mark the helpful replies as answers. Please let us know if you would like further assistance.
Best Wishes,
Alex Zhang