trying to follow this article.
https://www.experts-exchange.com/questions/27911885/Delete-Transfer-ownership-of-exchange-2010-calendar-items-of-deleted-user.html
Get-Mailbox -ResultSize Unlimited | search-mailbox -searchquery "Kind:meetings and from:User@domain.com" -targetmailbox Adminmailbox -TargetFolder "SearchData" -logonly -loglevel full
Get-Mailbox -ResultSize Unlimited | search-mailbox -searchquery "Kind:meetings and from:User@domain.com" -targetmailbox Adminmailbox -TargetFolder "SearchData" -loglevel full –DeleteContent
but adminmailbox isnt a valid mailbox and I want to target all mailboxes.
how do i do this?