Which goes back to my question; how did he know that there is another inbox? Unless he happens to know the other person... well, in person. And if he knows the

Which goes back to my question; how did he know that there is another inbox? Unless he happens to know the other person... well, in person. And if he knows them in person, why hasn't either of them switched email addresses already (within the last 10 years)? Something doesn't add up here.