Office 365 Conditional Replies for Specified Mailboxes

[MrWorry]

I have searched and searched for a solution to this but can't find anything.

We are looking to send Automatic Replies for messages to a specified number of mailboxes during a specific time.

 

Scenario: Automatically reply to all messages received between 5pm and 6am for all staff except support saying "We are closed and will get back to you as soon as we can"

 

I appreciate that this can be done through a PowerShell script using Set-MailboxAutoReplyConfiguration and Task Scheduler with a filter on Get_Mailbox in order to specify the mailboxes however....

 

1) It would be nice not to have to modify any existing AutoReply messages that the user may have already set, I think it would start to get messy if we checked for existing AutoReply messages and stored these temporarily until putting them back the next day.

 

2) Whilst script is fine, something that could be easily modified or fine tuned for example specifying different messages per user group would be great.

 

Something such as https://www.codetwo.com/exchange-rules-pro/ would be great but sadly they require an on-prem Exchange Server and I am now 100% cloud.

 

Does anyone know of any software solutions that can do this type of email management at an admin level?

[psydii]

Try Microsoft Flow / Power Automate.