Install cyrus-murder by entering the following commands in the terminal:
sudo apt update sudo apt install cyrus-murder
Description:
Cyrus mail system - proxies and aggregator
This package contains the Cyrus IMAPd suite murder aggregator system, i.e. IMAP, POP3 and LMTP proxies, and the mupdate mailbox master daemon. It allows for cluster setups where there are many backend Cyrus spools and frontend proxy servers. . For more information, please see the cyrus-common package.
Homepage: http://www.cyrusimap.org/
Version: 2.5.10-3ubuntu1
Section: universe/mail