OUtlook deployment with GPO

The easiest method, If you are running at least Exchange 2010 is when you give a user full permissions the mailbox is automatically mapped to their Outlook profile.  So you don't have to do a thing.  From what Im seeing there isnt a native way to do this via GPO.

just read that GPO is not available.....is there a script solution for this type of project?

Thanks again.

where do you check\allow full permission for a mailbox on Exchange 2010?

Do you have powershell access?
I can't write it any better than MSFT did here.

keep in mind that my Exchange doesn't know anything about external mailbox, there is no reference for the mailbox that I'd like to add on my mail server.
Thanks.

Ah you didn't specify it was external. So what's hosting this external mailbox?  Another exchange server or...?

I'm thinking you might have to work with a .prf file and then deploying that via GP. I'm reading here.

Using the ORK (Outlook Resource Kit) you could create a prf to be applied to an existing profile. Have that prf add and account of what you specify.  I've never added an external account to Outlook so I'm betting the ability to do this might hinge on the provider of that external account.  But this is the way you could get 'er done.

I guess it is another Exchange but don't have access to it.
Manually I would go to Mail---Profile--New mailbox (add email address, server name, credentials), open Outlook and another mailbox is right below my main one. Since I don't know everyone credentials (just email address, server name, remote domain) and don't want to know it, I hope to push some sort of the script that would add a mailbox and user when log in and opens the Outlook would add his/her credentials, and again if there is another approach to this issue I'm open for any working solution.

Thanks.

sorry I'm replying to your comments at the same time you send them...

So this is not the same external mailbox added to everyone but instead different external mailboxes.. Weird.  Well IIRC it cant be Exchange unless there's a trust relation ship or they are using Outlook Anywhere.  But then your users would obviously needs credentials for another domain.

Also are you wanting the second mailbox in the existing profile or a new profile?  That will also make a difference.

second mailbox is in the same profile, users know their email addresses and have credentials for them. I found this article and not sure if I can use it.

http://www.howto-outlook.com/howto/deployprf.htm

That link is the same as what I suggested above, using prf or profile files to push out these changes.
However this will be largely ineffective if all 200 (or however many) users all have individual mailboxes to add.  You can't use wild cards to create the prf files.

Any other ideas?

The absolute only way I can see you doing this would be if you generated a list of current users and the associated secondary mailbox info then maybe somehow create custom prf files for each one.  But depending on how many users you have it just might be faster to touch each one rather than develop a one-off push procedure. Some things just aren't suited to being deployed or pushed and I think you found one of those.

Thanks for brainstorming.

Not a prob.