How come if you send 2 email to one person both within a second the IMAP server can mix up the order in witch the emails were sent.
Comments:
It may not be the imap server. Only way to tell for sure is by comparing the full headers.
Email, when it’s sent, is not sent as a whole file. It’s sent in pieces, goes thru a mail server or two as pieces, and arrives at it’s destination in pieces. So if a piece is delayed, it will delay the whole email until the whole email can be delivered. That could be why the order gets skewed.