Forum Discussion

TonyRedmond's avatar
TonyRedmond
MVP
Jun 22, 2022

How to Set Auto-Reply for Group Mailboxes with PowerShell

  Microsoft recently added the ability to set auto-reply for group mailboxes. In this article, we explain why you'd want to do such a thing and go through some PowerShell code to show how to set ap...
microsoft 365 groups
TonyRedmond's avatar
TonyRedmond
MVP
Aug 25, 2026

Setting an auto-reply for a group mailbox works for me. I used the same PowerShell from the article to update the auto-reply for a group mailbox. Waited 2 minutes. Sent a message to the group mailbox, and bingo!

 

 

  • Traconis's avatar
    Traconis
    Tin Contributor
    Aug 25, 2026

    Thanks! This means there may be some tenant's specific restrictions in the background or yet another "weird" Microsoft bug :( Configured with SET and GET confirms all changes in place. However despite waiting a few hours no reply is being sent at all (regardless of the sender's domain).

    PS C:\Windows\System32\WindowsPowerShell\v1.0> Get-MailboxAutoReplyConfiguration -Identity 'email address removed for privacy reasons'


AutoDeclineFutureRequestsWhenOOF : False
AutoReplyState                   : Enabled
CreateOOFEvent                   : False
DeclineAllEventsForScheduledOOF  : False
DeclineEventsForScheduledOOF     : False
EventsToDeleteIDs                : 
EndTime                          : 31/12/2026 23:59:59
ExternalAudience                 : All
ExternalMessage                  : <html>
                                   <body>
                                   Please note that this inbox is not monitored and messages sent here will not be reviewed or actioned.<br>
                                   If you need to contact the xxxx, please send your email to: <a href="mailto:email address removed for privacy reasons">
                                   email address removed for privacy reasons</a><br>
                                   Many thanks<br>
                                   </body>
                                   </html>
                                   
InternalMessage                : <html>
                                   <body>
                                   Please note that this inbox is not monitored and messages sent here will not be reviewed or actioned.<br>
                                   If you need to contact the xxxx, please send your email to: <a href="mailto:email address removed for privacy reasons">
                                   email address removed for privacy reasons</a><br>
                                   Many thanks<br>
                                   </body>
                                   </html>
                                   
DeclineMeetingMessage            : 
OOFEventSubject                  : 
StartTime                        : 25/08/2026 10:00:00
Recipients                       : 
ReminderMinutesBeforeStart       : 0
ReminderMessage                  : 
MailboxOwnerId                   : [redactedGUID]
Identity                         : [redactedGUID]
IsValid                          : True
ObjectState                      : Unchanged