They're in the process of doing this for alums @hmc.edu too. Google baited us into moving the whole infrastructure into the cloud and now are switching us to something the alumni association can't afford.
Meanwhile, the self-hosted mail server for the CS department @cs.hmc.edu still hosts accounts for all the alumni and will for the foreseeable eternity. I can still SSH into the current department cluster and read two decade old (or two second old) emails using mutt. If their cluster somehow ever runs out of disks, I'm happy to donate a terabytes worth, but like hell I'm giving money to big-G for cloud storage.
Meanwhile, the self-hosted mail server for the CS department @cs.hmc.edu still hosts accounts for all the alumni and will for the foreseeable eternity. I can still SSH into the current department cluster and read two decade old (or two second old) emails using mutt. If their cluster somehow ever runs out of disks, I'm happy to donate a terabytes worth, but like hell I'm giving money to big-G for cloud storage.