我在哪里做错了？ 我无法login到roundcube。
IMAP Error in /var/www/sub/webmail/program/lib/Roundcube/rcube_imap.php (193): Login failed for [email protected] from IP.IP.IP.IP. Could not connect to localhost:143: The time limit for the connection timed out. 从日志：
dovecot: imap-login: Error: SSL: Stacked error: error:14094416:SSL routines:ssl3_read_bytes:sslv3 alert certificate unknown: SSL alert number 46 dovecot: imap-login: Error: SSL: Stacked error: error:14094418:SSL routines:ssl3_read_bytes:tlsv1 alert unknown ca: SSL alert number 48 dovecot: imap-login: Error: SSL: Stacked error: error:140E0197:SSL routines:SSL_shutdown:shutdown while in init dovecot: imap-login: Error: SSL: Stacked error: error:1408A0C1:SSL routines:ssl3_get_client_hello:no shared cipher