https://en.wikipedia.org/wiki/Cold_boot_attack
tl;dr they pull the decryption keys from your computer while it's still running, which of course it is because your mail server has to be up 24/7.
tl;dr they pull the decryption keys from your computer while it's still running, which of course it is because your mail server has to be up 24/7.
How would one access it if one needed to do config changes or, really, anything the server for legitimate purposes?
Mail transfer can tolerate multi-hour interruptions. Imagine the drama if it couldn't!