Automatic Reply is not working

Question

Automatic Reply is not working

Sokhuong Uon 0

Hello there,

Automatic reply had been working well but now it stop working. The account that we've setup automatic reply has MS365 Business Standard license.
We're migrating mailboxes from IMAP to Exchange. Previously automatic reply is working well in this condition.

Is there anything you recommend we should look into?

Thanks

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Answer 1

Faery Fu-MSFT 19,886 Moderator

Hi @Sokhuong Uon ,

I'm sorry to hear that you're having trouble with the automatic replies after migrating your mailboxes.

Here are a few steps you can try to troubleshoot and resolve the issue:

Check Automatic Reply Settings: Ensure that the automatic reply settings are correctly configured in the new Exchange environment. Sometimes, settings might need to be reconfigured after migration.
Test with Different Accounts: Try setting up automatic replies on a different account to see if the issue persists. This can help determine if the problem is specific to the migrated account or a broader issue.
Update Configuration: Sometimes, settings need to be reconfigured after migration. You can use PowerShell commands like Set-MailboxAutoReplyConfiguration to set up automatic replies. For more information about this cmdlet, see Set-MailboxAutoReplyConfiguration.

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Sokhuong Uon 0 Reputation points

2025-02-10T08:43:36.98+00:00

Thank you, I will try the cmdlet.

Just to provide more context, we don’t have any automatic reply configuration on our old mail server. We only started using automatic replies after migrating some mailboxes to Exchange. However, we’re not fully on Exchange yet—some mailboxes are syncing to Exchange, while others are only on the old server.

The account using automatic replies is syncing from IMAP to Exchange. Initially, it worked, but after about two months, it stopped. We then tried setting up migration and configuring automatic replies for another mailbox, but it didn’t work for that mailbox. That said, the OOF status still appears correctly on MS Teams.
Faery Fu-MSFT 19,886 Reputation points Moderator

2025-02-12T08:38:39.28+00:00
Hi @Sokhuong Uon ,

How did you set up the automatic reply? (via Outlook, Outlook on the web, or PowerShell)

Given this situation, you can try some other troubleshooting:

Verify whether the automatic reply is set to external senders. By default, Exchange may only send replies to internal senders. Ensure OOF is set to reply to external senders.

Ensure that emails are being routed correctly to the Exchange account. If emails are not reaching the Exchange mailbox, automatic replies will not be triggered.

Check Mail Flow Rules: Look for Exchange transport rules that might block or modify OOF replies for external/IMAP-synced emails (e.g., rules filtering external domains).

Ensure emails are delivered to the Inbox (not another folder). OOF replies typically trigger only for emails in the Inbox.

That said, the OOF status still appears correctly on MS Teams.

Teams' presence/OOF is separate from Exchange email OOF.
Louisiane AUSTIN 0 Reputation points

2026-03-19T14:36:44.2633333+00:00

What to do when the automatic replies in outlook shows that "the automatic reply setting cannot be displayed because the server is currently unavailable"

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Automatic Reply is not working

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