Hi guys,

I am hope you might be able to assist. 

I have users who access a shared mailbox (primary mailbox) as delegates with full permissions and send as permissions. They also have a nested mailbox which is their own personal mailbox. Mail sends from both mailboxes and when it behaves mail gets delivered to the sent item of the sender. But on a common recurrence mail sits in the Outbox of the delegate mailbox when sent from that mailbox. They can hit send/receive and it will force mail to send and also mail can delay for several minutes at times. This is also seen in OWA.

Removing the nested mailbox and adding it as a additional mailbox allows mail to flow without issue but mail sent from the additional mailbox gets placed in the sent items of the primary mailbox. Client would prefer the sent items to be kept separate (tried DelegateSentItemsStyle).

The exchange is a Exchange 2013 VM server and the client's use remote desktop services to access the platform. Also each Windows mail client is configured to use HTTP and cache mode is disabled for remote services. Last applied update was on the 08/2014.

Your help will be greatly appreciated.

PJ

• Edited by pjoriordan Tuesday, March 24, 2015 10:35 AM

Amy thank you for your reply. Enabling cache mode is not an option. This is a large mailbox with a lot of traffic and clients access the mailbox through remote desktop services with limited disk space. The following instructions resolved my issue. 

* Removed full mailbox permissions and send as from delegate mailbox

* Run the following on the exchange server

Add-MailboxPermission -Identity "(Delegate mailbox)" -User "John Doe (User mailbox)"-AccessRights FullAccess -InheritanceType All -Automapping $false

* Add send as permissions for the delegate mailbox

* Run the following on the primary DC server

repadmin /syncall /APeD /Q

• Edited by pjoriordan 16 hours 56 minutes ago

Client needs to keep sent items separate and to add an additional mailbox with DelegateSentItemsStyle registry fix applied you need cashed mode enabled in order keep the sent items in sender's folder.

Amy thank you for your reply. Enabling cache mode is not an option. This is a large mailbox with a lot of traffic and clients access the mailbox through remote desktop services with limited disk space. The following instructions resolved my issue. 

* Removed full mailbox permissions and send as from delegate mailbox

* Run the following on the exchange server

Add-MailboxPermission -Identity "(Delegate mailbox)" -User "John Doe (User mailbox)"-AccessRights FullAccess -InheritanceType All -Automapping $false

* Add send as permissions for the delegate mailbox

* Run the following on the primary DC server

repadmin /syncall /APeD /Q

• Edited by pjoriordan Thursday, March 26, 2015 2:30 PM
• Marked as answer by Amy.WangMicrosoft contingent staff, Moderator Thursday, April 09, 2015 2:45 AM

There is an alternative way: CentralUniSent utility.