Exchange Shell:
Assign Permission:
New-ManagementRoleAssignment -Role "Mailbox Import Export" -User "username"
Logout then log back in.
Run Export Request:
New-MailboxExportRequest -Mailbox username -ExcludeFolders “#Contacts#” -FilePath \\server\share\user.pst
Monitor Status:
Get-MailboxExportRequest | Get-MailboxExportRequestStatistics
Cleanup:
Get-MailboxExportRequest | Remove-MailboxExportRequest
Source: Stevieg
“#Contacts#” can be replaced for excluding other items:
Inbox
SentItems
DeletedItems
Calendar
Contacts
Drafts
Journal
Tasks
Notes
JunkEmail
CommunicationHistory
Voicemail
Fax
Conflicts
SyncIssues
LocalFailures
ServerFailures