To use the Thunderbird email program with the cubic.org imap services, configure the following settings for support of deprecated TLS 1.1:
security.tls.version.enable-deprecated = true security.tls.version.fallback-limit = 1 security.tls.version.min = 1
Some other useful configuration:
// download mail from all accounts on startup mail.server.default.check_all_folders_for_new = true // turn off extra sending window mailnews.show_send_progress = false // This pref controls the "Advance to next unread message in [x] folder" behaviour // 0 - Always go to the next folder without prompting // 1 - Ask before going (the default behaviour) // 2 - Never go to the next folder with unread messages mailnews.nav_crosses_folders = 2