We have a Dovecot server configured for internal usage purpose and Thunderbird as a email client with
IMAP protocol. I have never used either of the software, so my questions are a bit naive.
Due to some reasons we downloaded all emails to local Thunderbird uisng
POP3 few days back, now we are using
POP3(as backup purpose). Today first all messages are downloaded using
POP3 but in
IMAP, messages after 20th JAN are only getting. I thought it is due to option having checked
Leave messages on Server in POP3 settings. I'm confused that whether message before 20th JAN are remains on server or deleted, how to know this ?
POP3 server settings.