If you encounter a problem where an exchange server 2007 room mailbox is not automatically accepting meeting bookings here are two quick steps to follow.
Exchange 2007 room mailbox auto accept not working.
Meeting invitation from on prem 2010 user mbx to cloud user mbx works as expected.
This is the name that s listed in the resource mailbox list in.
To create a room mailbox click new room mailbox.
Who can schedule a resource for an auto accept resource mailbox.
I have a room mailbox which is configured to auto accept meeting requests but suddenly seems to have gone on strike.
Use this box to type a name for the room mailbox.
Use the options on the page to specify the settings for the new resource mailbox.
The different types of resource mailboxes in microsoft exchange server 2007 are.
Create a room mailbox.
This is useful when you have just created a bunch of new room mailboxes for a new environment and want to save time configuring the meeting processing settings.
If you have to convert the mailbox to a room mailbox use the following command.
Room mailboxes can be included as resources in meeting requests.
The resource does not automatically respond to meeting requests.
A resource mailbox that is assigned to a meeting location such as a conference room auditorium or training room.
For more information see convert a mailbox.
First double check that the room mailbox is configured correctly for auto acceptance of meetings the correct setting is autoaccept.
It receives the meeting request but does nothing with it.
I have a feeling that it might have been since update rollup 6 went on but don t know for sure.
Auto accept meeting requests from external users for room mailbox automated meeting responses not working for external users exchange 2007 posted june 8th 2011 under exchange 2007 msexch attributes powershell.
Before you begin have a working room available to compare settings against it.
Auto accept for meeting request from cloud user mailboxes to the same cloud room mbx works as expected.
Accept or decline from cloud user mbx generates response and on prem mbx receives it all exchange online ip addresses have port 25 open on firewall to on prem.