I needed a script to set the mailbox language and also change the DefaultFolderNames to that language. This can be done by a nice one-liner Get-Mailbox "MailboxName" | Set-MailboxRegionalConfiguration -LocalizeDefaultFolderName:$true -Language 1031 -TimeZone "W. Europe Standard Time" You have to change "MailboxName" to the name of the mailbox. In this case it will change the … Continue reading Change mailbox language