To give a user full mailbox rights, to be able to send meeting requests as another user do the following:

1. Open Migration Command Shell

2. Type: Add-MSOnlineMailPermission –Identity UserName1@DomainName -TrustedUser UserName2@DomainName -GrantFullAccess $True

Where username1 is the mailbox that you want to give Username2 permission to

3. Enter the proper admin credentials and make sure that the command shell replies with Successfully granted user account username1.domain.com full access permission to mailbox username2@domain.com

Had some trouble recently getting clients setup with Microsoft Exchange Online services on a mobile device. Here’s the settings that worked for me.



IPhone
——
Email: user@domain.com
Server: red001.mail.microsoftonline.com (Do no included the HTTPS:\\ portion of address)
Domain: Should be left blank
Username: user@domain.com
Password: ******** (The users BPOS/Exchange Online password)



Blackberry
——
Email account: user@domain.com
Web Access URL: https://red001.mail.microsoftonline.com/owa (be sure to include the https:// and trailing /owa)
Username: user@domain.com
Password: ******** (The users BPOS/Exchange Online password)
Mailbox Name: user (just the prefix of their email address)

To add mailbox permissions to other users in Microsoft Exchange Hosted Services (BPOS).

Add-MSOnlineMailPermission -Identity user@example.com -TrustedUser admin@example.com –GrantFullAccess True –GrantSendAs True

http://technet.microsoft.com/en-us/library/ee662271.aspx

Get Mailbox size settings from Microsoft Exchange Hosted Services

Get-XsHostedExchangeMailbox -SourceServer red001.mail.microsoftonline.com -SourceIdentity user@domain.com -SourceAdminCredential $cred -SourceDetail Full

http://blogs.pointbridge.com/Blogs/schertz_jeff/Pages/Post.aspx?_ID=85 (more…)