they hacked Prince Phillip's electronic mailbox.

An email account mailbox is a place on a computer somewhere where electronic messages addressed to the account holder are accumulated until read.

An email account mailbox is a place on a computer somewhere where electronic messages addressed to the account holder are accumulated until read.

Yep, same as anybody else.

Without much in the way or electronic communications, the mailbox is even more important to the Amish.

That is the correct spelling of the compound noun mailbox(mail receptacle, or e-mail account).