Gracias por vuestra respuestas. Veamos: verifico la configuración horde/imp desde la url:
http://192.168.1.1/horde/imp/test.php Trying protocol imap, Port 143: ERROR - The server returned the following error message: Array ( [0] => Certificate failure for localhost: self signed certificate: /C=US/ST=NL/L=New York/O=Courier Mail Server /OU=Automatically-generated IMAP SSL key/CN=localhost /[EMAIL PROTECTED] ) Trying protocol imap/notls, Port 143: SUCCESS - INBOX has 2 messages (2 new 2 recent) Trying protocol imap/ssl, Port 143: ERROR - The server returned the following error message: Array ( [0] => TLS/SSL failure for localhost: SSL negotiation failed ) Trying protocol imap/ssl/novalidate-cert, Port 143: ERROR - The server returned the following error message: Array ( [0] => TLS/SSL failure for localhost: SSL negotiation failed ) Trying protocol imap/tls/novalidate-cert, Port 143: SUCCESS - INBOX has 2 messages (2 new 0 recent) The following configurations were successful and may be used in your imp/config/servers.php file: Configuration 1 'server' => 'localhost' 'protocol' => 'imap/notls' 'port' => '143' Configuration 2 'server' => 'localhost' 'protocol' => 'imap/tls/novalidate-cert' 'port' => '143' Y en los logs de syslog y mail.log aparece esto: LOGOUT, [EMAIL PROTECTED], ip=[::ffff:127.0.0.1], headers=0, body=0, time=0, starttls=1 Pero cuando lo hago desde el webmail: http://192.168.1.1/horde/login.php aparece esto en el syslog y mail.log Dec 14 18:27:06 web imapd: Connection, ip=[::ffff:127.0.0.1] Dec 14 18:27:06 web imapd: couriertls: connect: error:14094418:SSL routines:SSL3_READ_BYTES:tlsv1 alert unknown ca Dec 14 18:27:06 web imapd: Disconnected, ip=[::ffff:127.0.0.1], time=0, starttls=1 y logicamente no se conecta. Tiene que ser algo de configuración.... (ya que el squirrelmail me funciona perfectamente por el imap-143). Referente a los certificados, he seguido la instalación qmailrocks.com Gracias por todo. Un saludo. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]

