Postfix und RC4

Hallo,
wie deaktiviert man RC4 bei einem Postfix mail server?

Ich habe folgendes in der Konfiguration:

smtp_tls_mandatory_protocols = !SSLv2, !SSLv3
smtp_tls_protocols = !SSLv2, !SSLv3
lmtp_tls_mandatory_protocols = !SSLv2, !SSLv3
lmtp_tls_protocols = !SSLv2, !SSLv3
smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3
smtpd_tls_protocols = !SSLv2, !SSLv3
smtpd_tls_mandatory_ciphers=high
tls_high_cipherlist=!RC4:EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA256:EECDH:+CAMELLIA128:+AES128:!SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!SEED:!IDEA:!ECDSA:kEDH:CAMELLIA128-SHA:AES128-SHA:!ADH:+HIGH:!MEDIUM:!LOW:!SSLv2:!SSLv3!EXPORT

Aber der Server bietet mir trotzdem noch ECDHE_RSA_WITH_RC4_128_SHA an.