en: server: key: disable_plaintext_auth: Disable authentication without encryption auth_username_chars: Allowed characters in a user's name auth_worker_max_count: Maximum number oflogin process auth_verbose: Detailed loging of authentication mail_cache_min_mail_count: Minimum number of emails before updating the cache imap_login__listener__port: IMAP port imaps_login__listener__port: IMAPs port pop3_login_listener_port: POP3 port pop3s_login__listener__port: POP3s port imap__process_limit: Maximum number of connected IMAP clients pop3__process_limit: Maximum number of connected POP3 clients quota_full_tempfail: Notification method to a full mailbox rejection_subject: Subject of rejection rejection_reason: Reason for rejection storage_size: Mailbox size storage_trash: Size bin storage_spam: Size SPAM