Who is this article for?

Users experiencing challenges using a Shared or Extra Non-Exchange Mailbox.

Write permissions are required to change the configuration.

When using an Extra Non-Exchange Mailbox, such as a pop3 or imap based mailbox, in addition to the main exchange one, you may experience issues. This is because the type of mailbox Mail Manager tries to interact with is not supported.

This article shows you how to resolve these problems.

1. Issue
2. Solution (Single User)
3. Solution (All Users)

1. Issue

When using a non-supported mailbox, you might see the message: "Filing messages from this mailbox are not supported.".

Extra configuration can be put in place to prevent Mail Manager interacting with those mailboxes. While you shouldn't experience issues with Shared Mailboxes as they should be on the same Exchange, the below solutions could prevent a Shared Mailbox from being accessible by Mailbox and may need to be removed or edited accordingly.

2. Solution (Single User)

To restrict interaction for a single user:

1. Open File Explorer.
2. Navigate to the following location: %appdata%\Oasys\Mail Manager\
3. Right-click EmailFiling.cfg.
4. Hover over Open With.
5. Select Notepad.
   You can also use other plain text editors to complete the next steps.

6. Search the file for the following line: AllowedMailboxDisplayName
   If the line exists, we need to edit it.
   If the line doesn't exist, we need to add it.
7. Ensure the line reads as follows: AllowedMailboxDisplayName=@mycompany.com
   The domain should be of the Exchange Mailbox, not the Non-Exchange Mailbox.
8. Save the file.

After restarting Outlook, you should now be able to complete mail actions without encountering the error.

3. Solution (All Users)

Before applying the configuration to all users, we recommend testing it with a single user first.

To restrict interaction for all user:

1. Select Tools.
2. Choose User Preferences from the options.
3. Scroll down until you see the Shared configuration folder field.

4. Click Browse....
5. Open the AdminEmailFiling.cfg file in a plain text editor (e.g.: Notepad).
6. Search the file for the following line: AllowedMailboxDisplayName
   
7. If the line exists, we need to edit it.
   If the line doesn't exist, we need to add it.
8. Ensure the line reads as follows: #AllowedMailboxDisplayName=@mycompany.com
   The domain should be of the Exchange Mailbox, not the Non-Exchange Mailbox.
9. Search the file for the following line: AdminUpdateDateTime=
   
10. Increment the number on this line by 1.
    If the number is "1", update it to "2".
11. Save the file.

After restarting Outlook, users should now be able to complete mail actions without encountering the error.

This solution contains a "#" in front of the "AllowedMailboxDisplayName" line. This is to trigger a refresh to each individual config file. Ensure that "#" is not added when modifying the file for a single user.