I have a group of users.  All working with windows 7 pro and Outlook 2010.  Their department has its own mailbox, lets call it inventory, that they would out of as well as their own personal mailboxes.  They recently started receiving large quantities of conflict messages.  These come in at all times of the day even when no one is working in the mailbox.  They use rackspace for their exchange services.  They have had lots of little random issues with this mailbox over the last year.  I was able to resolve them by adding the "inventory" mailbox the same way as I added their personal mailbox(File>Account Settings>Account Settings>New). There were 3 users who started to need access to this mailbox and so I added them.   Since adding them the conflicts messages have started.  The only thing that appears different about the messages once the conflict message is opened is that one message may be for "inventory" and the other would be for "inventory@domain.com".  I have looked online for options and every suggests turning cached mode off.  I have tried this and it did not work and in fact broke caused issues for a different user who I had to return the settings to.  Any ideas?

Thanks

Hi,

What does that conflict message mean? Duplicate?

I'm not sure if I have understood this scenario clearly... Do the users have their own mailboxes, or do they share one called "inventory"?

Please help clear my questions above thus I can know what is going on in your scenario and probably provide some suggestions.

Regards,

Melon Chen
TechNet Community Su

They have 2 mailboxes.  They have their personal mailbox and then they all have the Shared mailbox inventory.  The conflict message, when opened, contains 2 copies of the same email.  The only difference between the two email is the recipient "Inventory".  One email has the recipient as Inventory and the other has the recipient as Inventory@companyname.com.

Hi,

You mentioned "Since adding them the conflicts messages have started." Please remove them one by one, probably the issue will disappear once you remove one of them. This way we can narrow down the scope.

Please also check if anyone of the three users is the delegate of the shared mailbox, remove the delegate permission to check the result.

Please as well check the Rules of the three users, check if there is a rule that can duplicate the emails.

Regards,

Melon Chen
TechNet Community Su

They are all deletes for this mailbox as they all have to send as "inventory".  When I went to check this morning the issue apparently has cleared itself.  The only thing I have done since the last steps mention was remove and re-add the mailbox to their outlook profiles.  Not sure if that did but the issue is now gone.