What a good question!
I don't know if I *need* anything as old as 10 years, but I nevertheless keep backups of all old accounts. My preferred tool these days is "offlineimap" which makes it easy to keep email on file.
I don't know if I *need* anything as old as 10 years, but I nevertheless keep backups of all old accounts. My preferred tool these days is "offlineimap" which makes it easy to keep email on file.