Описание тега dovecot
QUESTIONS ABOUT POSTFIX ADMINISTRATION ARE OFF-TOPIC. Dovecot is an IMAP and POP3 server for Linux
Dovecot is an open-source IMAP and POP3 server for Linux originally developed by Timo Sirainen in 2002.
Please note that https://serverfault.com/ is another Stack Exchange website where you can ask especially configuration specific problems.
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