Change the DNS to your new one first. See you mail come in then pull your old emails across. Keep both accounts running until migration complete

Yeah but put it on a private network, not the internet

It’s a good analogy and point. This will help a lot of people but not all

Thank you

Can you break out your math? I’m thinking when you add in all the handshakes, rst, retransmits it would be high but I’m too lazy to do math myself