09-13-2017 12:31 AM
09-13-2017 12:31 AM
Our scenario is as follows:
Our client is on Exchange Online and using Outlook 2013. We have 2 people accessing a shared mailbox called Info@mycompany.com
PersonA and PersonB have access to the shared mailbox with full permissions. PersonA and PersonB are able to successfully send and receive from email@example.com
Send mail from PersonA@mycompany.com TO firstname.lastname@example.org, email@example.com
firstname.lastname@example.org and email@example.com receive the email - no problem yet
PersonA views the email in the Info shared mailbox and hits Reply All
Problem exists here where:
From = Info@mycompany.com
To = Info@mycompany.com, firstname.lastname@example.org
From = email@example.com
To = PersonA@mycompany.com, random@randomcom
Why would Outlook incorrectly remove PersonA@mycompany.com and incorrectly add firstname.lastname@example.org to the TO field (unecessary since you're replying from email@example.com, the shared mailbox)?
How do I configure Outlook to fix this?
09-13-2017 12:11 PM
Most likely becaus Outlook "sees" you as PersonA. So how exactly are you accessing the shared mailbox? This is the expecte behavior when you have the shared mailbox added as additional mailbox (via File -> Account settings -> More -> Advanced), as you are acting as the delegate. If you want the "correct" behavior, add it as additional account instead (File -> Add account -> enter shared mailbox address -> enter *your* username and password when prompted for credentials).
09-13-2017 10:41 PM
We're giving PersonA full permissions on that Shared Mailbox, which in Outlook means we don't add the mailbox at all, Outlook does it by itself.
09-14-2017 12:13 AM
So Automapping, got it. This is equivalent to the "additional mailbox" scenario, thus the behavior you are seeing. If you want the "correct" behavior, you need to add it as additional account instead.
09-14-2017 12:17 AM
From what you're saying it sounds like Automapping is optional? How do I switch it off and try what you're suggesting?
09-14-2017 12:25 AM
It's optional, but need to be configured via PowerShell. Remove the permissions and re-add them with Automapping turned off:
Remove-MailboxPermission mailbox -User delegate -AccessRights FullAccess
Add-MailboxPermission mailbox -User delegate -AccessRights FullAccess -Automapping $false
The mailbox will not automatically appear in Outlook then. To add it (as additional account), use the File menu -> Add Account -> Enter the shared mailbox email address and dont enter password. When prompted for credentials, enter the UPN/password of the delegate user.
09-14-2017 12:30 AM
Would doing this have any impact on our ability to convert the shared mailbox to a regular mailbox at a later date?
09-14-2017 11:11 AM
No, that's simply "client access" method, doesnt affect any of the mailbox properties.
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