How to resolve auto reply email issue(Power automate and Outlook)

Question

Dear Microsoft Support,

I need help with my power automate as every time when I send email, it will shows auto reply email. This auto reply email I did the flow but I turned it off and deleted a week ago but it still continues to run.

Best Regards,

Li Jie

Answer 1

Check Hidden Inbox Rules with PowerShell, try this:

Some auto-replies are stored as hidden rules in the mailbox.

• If you have Exchange Online (Microsoft 365), connect using PowerShell: Connect-ExchangeOnline Get-InboxRule -Mailbox "******@domain.com"
• If you see any suspicious rule (like ReplyWith), remove it with: Remove-InboxRule -Identity "RuleName" -Mailbox "******@domain.com"

Answer 2

Hi Kim,

I have try all the following steps you shown me but it still not working.

Check and turn off Automatic Replies in Outlook

• Open Outlook → File > Automatic Replies.
• Make sure “Do not send automatic replies” is selected.
• Click Rules… (bottom left of the Automatic Replies window) → delete any rules that send a reply.

Delete Mailbox Rules

• Outlook → File > Manage Rules & Alerts.
• Remove any rule that says “reply with…” or looks like your old auto-reply.

Confirm in Outlook Web App (OWA)

• Sign in at Outlook on the web.
• Go to Settings > Mail > Rules and Settings > Mail > Automatic replies.
• Disable anything related to auto-replies.Check and turn off Automatic Replies in Outlook
  • Open Outlook → File > Automatic Replies.
  • Make sure “Do not send automatic replies” is selected.
  • Click Rules… (bottom left of the Automatic Replies window) → delete any rules that send a reply.
  Delete Mailbox Rules
  • Outlook → File > Manage Rules & Alerts.
  • Remove any rule that says “reply with…” or looks like your old auto-reply.
  Confirm in Outlook Web App (OWA)
  • Sign in at Outlook on the web.
  • Go to Settings > Mail > Rules and Settings > Mail > Automatic replies.
  • Disable anything related to auto-replies.
  Before I created the auto-reply flow in power automate, there wasn't any auto reply rules or management in outlook. So the steps I am doing is not relevant. I believe it is a bug from power automate. Is there any way to resolve that issue?

Best Regards,

Li Jie

Answer 3

Hello! Li. Thanks for the details.

This can happen if the rule or automation wasn’t fully removed, or if Outlook has its own auto-reply enabled separately.

Please try these steps in order, do not skip a step:

Check and turn off Automatic Replies in Outlook

• Open Outlook → File > Automatic Replies.
• Make sure “Do not send automatic replies” is selected.
• Click Rules… (bottom left of the Automatic Replies window) → delete any rules that send a reply.

Delete Mailbox Rules

• Outlook → File > Manage Rules & Alerts.
• Remove any rule that says “reply with…” or looks like your old auto-reply.

Confirm in Outlook Web App (OWA)

• Sign in at Outlook on the web.
• Go to Settings > Mail > Rules and Settings > Mail > Automatic replies.
• Disable anything related to auto-replies.

(If using Office 365/Exchange Online) Ask your IT admin (or check yourself if you have rights):

Go to Exchange Admin Center → Mail flow > Rules.

Remove any lingering server-side rule that sends replies.

See if this helps. If you need further assistance, just let me know.

Best regards,

Kimberly