I’m not sure if this is possible, but from posts that I search, I’m thinking it might be.
I run two servers, one for my old company, and one for my new company, each with it’s own domain. My new company bought the old company. The old company is still running on the previous version of Ubuntu but on a great cloud server. The new one is current, but not on a great server.
I use email as my time machine, I frequently look up emails from years ago to recall lots of things. I want to move everything to the good cloud server, but keep all email and addresses of both. I know that upgrading the old one is probably my first step, but I’m not going to do that if my only option is to delete it anyway.
Can this be done reliably?