bincimap-run - IMAP server for Maildir depositories - server side sorting is not supported
courier-imap - Courier Mail Server - IMAP server - server side sorting is supported, does not like unsupported charsets cyrus-imapd-2.2 - Cyrus mail system (IMAP support) - server side sorting is supported, excluding Korean cyrus21-imapd - Cyrus mail system (IMAP support) - server side sorting is supported, excluding Korean dovecot-imapd - secure IMAP server that supports mbox and maildir mailboxes - server side sorting is supported, ignores unsupported charsets kolab-cyrus-imapd - Cyrus mail system (IMAP support) - server side sorting is supported, excluding Korean mailutils-imap4d - GNU mailutils-based IMAP4 Daemon - server side sorting is not supported uw-imapd - remote mail folder access server - server side sorting is supported, does not like unsupported charsets Debian supports six different IMAP servers. Two of them don't support server side sorting. One breaks on Korean translation.