So using the exchange mailbox agent and using archive, clean up / stubbing. So, messages are being archived and cleaned just fine, however im trying to setup the stub link that is described in the link https://documentation.commvault.com/commvault/v11/article?p=29134.htm
The link says "On the client where the agent is located". #1 - What exactly does that mean? The Exchange Mailbox Agent is composed of many different pieces (Nodes, Indexes, WebServer, WebConsol, SUDOCLIENT etc...) I have applied this key in the group level which levarages to all the exchange servers I have and still do not see the icon on the message.
The other part of that is, while looking at the logs CVMailBackup.log I do see that messages were stubbed
3844 1530 09/11 15:26:34 7793712 Worker Statistics: Total Mailboxes : , Mailboxes Successful : , Mailboxes Failed : , Mailboxes Skipped : , Folders Failed : , Folders Successful : , Items Failed : , Items Successful (Including Stubs) : , Successful Stubs : 
As well as the stub icon being reached by cv as shown below;
3844 1530 09/11 15:26:01 7793712 Set registry metadata [StubIconLocation]->[\\sharedlocation\OutlookAddinStubIconWindowsx64.ico]
3844 1530 09/11 15:26:01 7793712 START Mailbox [USER] GUID [871C09D8XA5C3X40EEXA64BX5DE1CAC6CEA8]...
3844 173c 09/11 15:26:01 7793712 CArchFileKeys::FetchKeys(SetEncryptArgs_t)() - Retrieving encryption keys for archFileId 12914227, copyId 180
#2 - I currently deployed the outlook Add-in only, does that icon requires something else or a different addin package from here https://documentation.commvault.com/commvault/v11/article?p=29115.htm
Example from CV portal: https://documentation.commvault.com/commvault/release_9_0_0/books_online_1/english_us/products/dm_ex/outlook_client/getting_started.htm