When I run this cmd why I have a msg to confirm deletion in mailboxes that I'm sure they don't contain the email from the sender? Is it normal?
Get-mailbox -resultSize unlimited | search-mailbox –searchquery "From:senderXYZ@.domain.com -deletecontent
Confirm
Deleting content from mailboxes DOMAIN/User
[Y] Yes [A] Yes to All [N] No [L] No to All [?] Help (default is "Y"):
Get-mailbox -resultSize unlimited | search-mailbox –searchquery "From:senderXYZ@.domain.com
Confirm
Deleting content from mailboxes DOMAIN/User
[Y] Yes [A] Yes to All [N] No [L] No to All [?] Help (default is "Y"):