# followed by the matching CRL(s). (e.g. ssl_ca = </etc/ssl/certs/ca.pem)
#ssl_ca =
+# Require that CRL check succeeds for client certificates.
+#ssl_require_crl = yes
+
+# Directory and/or file for trusted SSL CA certificates. These are used only
+# when Dovecot needs to act as an SSL client (e.g. imapc backend). The
+# directory is usually /etc/ssl/certs in Debian-based systems and the file is
+# /etc/pki/tls/cert.pem in RedHat-based systems.
+#ssl_client_ca_dir =
+#ssl_client_ca_file =
+
# Request client to send a certificate. If you also want to require it, set
# auth_ssl_require_client_cert=yes in auth section.
#ssl_verify_client_cert = no
# auth_ssl_username_from_cert=yes.
#ssl_cert_username_field = commonName
+# DH parameters length to use.
+#ssl_dh_parameters_length = 1024
+
# How often to regenerate the SSL parameters file. Generation is quite CPU
# intensive operation. The value is in hours, 0 disables regeneration
# entirely.
#ssl_parameters_regenerate = 168
+# SSL protocols to use
+#ssl_protocols = !SSLv2
+
# SSL ciphers to use
#ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL
+
+# Prefer the server's order of ciphers over client's.
+#ssl_prefer_server_ciphers = no
+
+# SSL crypto device to use, for valid values run "openssl engine"
+#ssl_crypto_device =