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Guest members of Teams channel receive Out Of Office emails when a new person is added

Mikkel Johnsen 20 Reputation points
2025-08-18T09:02:47.6633333+00:00

When a new person is added to the Teams channel and they have their out of office on, all of the members/guests in the teams channel receive the out of office response via email that is sent to that respective teams channels email address. Is there a way to turn this option off?

This happens to all of our Teams groups.

Microsoft Teams | Microsoft Teams for business | Settings | Other
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  1. Jess-Q 1,570 Reputation points Microsoft External Staff Moderator
    2025-08-18T12:20:32.8233333+00:00

    Hi Mikkel Johnsen

    Thank you for posting your question in the Microsoft Q&A forum.    

    Regarding your issue, this happens because the channel's default settings automatically post any email sent to its address as a message, so everyone sees the automatic Out of Office replies.  

    Unfortunately, there is no built-in feature to prevent Out of Office auto replies from being sent Teams channel email address when a new member is added. This is a default function of Teams, as it treats all emails sent to the channel's email address as new messages. 

    However, I suggest that you can try a few steps: 

    1. Disable the welcome email for Microsoft 365 groups 

    You can disable the welcome email for Microsoft 365 Groups using PowerShell, the process involves connecting to Exchange Online with PowerShell and then running a specific command. 

    For more details, please refer to: Block Welcome Messages for New Microsoft 365 Group Members 

    _Disclaimer: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.  

    1. Add members without triggering the welcome email 

    Some users from other community mentioned that when you add a member to a Team channel via Azure AD it might not trigger the welcome email which will result in not triggering the Out of Office auto replies, but there is no guarantee that it will always work. 

    1. Block Autoreplies to the Group/Channel Email using a mail flow rule (not recommend) 

    This is just a suggestion as I'm afraid it might interfere with or disrupt other existing policies in your organization. 

    I apologize for the lack of feature Microsoft currently doesn't offer and if you have any other questions or need further assistance, feel free to ask.  

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".  

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread 

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