Friday , August 7 2020

Copy Sent Items to Shared Mailboxes and delegates

From Exchange 2013 Cu9 or later versions of Exchange 2013 and Exchange Online (Office 365). When user sends emails using send as over a shared mailbox we have an option of saving sent items on the shared mailboxes. So that all sent items can be stored in a centralized location. make sure all the exchange 2013 servers in the environment running cu9 or later.

Lets see how to do that.

  • you cannot login to a shared mailbox directly.
  • Sent items are not stored when you do SendAs by default.
  • Mostly shared mailboxes are department mailboxes like HR, contact us, info mailboxes.

Creating a Shared Mailbox –


New-Mailbox commonmailbox -Database "*514" -Shared


Providing User2 Full access to the Common Mailbox (for the user to access all the content in that mailbox) –


Add-MailboxPermission Commonmailbox -User user2 -AccessRights FullAccess -InheritanceType All


To Remove the Mailbox Permission –

Remove-MailboxPermission -Identity ayla -User "Jim Hance" -AccessRights FullAccess –Inheritance

Providing User2 Send As to the Common Mailbox –

On-premises –

Add-ADPermission -Identity commonmailbox -User user3 -ExtendedRights "Send As"

Exchange Online –

Add-RecipientPermission -Identity "commonmailbox" -Trustee "user3" -AccessRights SendAs


By Default “From” is not enabled in Outlook Web App .  To Enable that – login to owa go for options. Check the options always show “from”



As default am sending as commonmailbox to my CEO.


Common mailbox – send as emails are not storing in sent items by default.


Lets see how to enable that –

set-mailbox commonmailbox -MessageCopyForSentAsEnabled $True


Good to know – For SendOnBehalf

set-mailbox commonmailbox -MessageCopyForSendOnBehalfEnabled

Now you can see the Sent items saved in the Common mailbox





About Satheshwaran Manoharan

Satheshwaran Manoharan is an Microsoft Office Server and Services MVP , Publisher of Specialized in Office365 / Microsoft Exchange / Virtualization , Sathesh is an Messaging Expert supporting/Designing/Deploying many medium size businesses to large enterprises when it comes to Corporate messaging and Virtualization Infrastructure

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