Answer by LPChip for Prevent Thunderbird from automatically marking messages...
This is because you have configured your mailclient as POP3 rather than IMAP. This is how POP3 works. In order to fix this, Backup the email on your computer, then remove the account and reconfigure as...
View ArticlePrevent Thunderbird from automatically marking messages as read on the server...
Thunderbird marks ALL downloaded messages as read on a server, even if I didn't open any of them. E.g. my android mail client doesn't have such problem - message marked as read on a server only when I...
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