On Thu, 4 Nov 2021 16:21:55 -0700, Shaun Johnson said: >If the user who did this accidentally still has the POP client >installed, and said mail client supports multiple accounts - including >IMAP accounts, the simplest way IMO would be to have him set up a second >account as an IMAP account, turn off 'sync' for the POP3 account, then >just drag the messages from the POP3 account inbox over to the IMAP >account INBOX (then delete the POP3 account).
He was using Thunderbird. Do you happen to know if it has the features necessary to attempt what you describe? Thanks, Sean