diff --git a/data/conf/dovecot/dovecot.conf b/data/conf/dovecot/dovecot.conf
index e6dc6f70..9b299847 100644
--- a/data/conf/dovecot/dovecot.conf
+++ b/data/conf/dovecot/dovecot.conf
@@ -13,7 +13,9 @@ mail_location = maildir:~/
 mail_plugins = quota acl zlib antispam
 auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@
 ssl_protocols = !SSLv3 !SSLv2
-ssl_cipher_list = EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH:+CAMELLIA256:+AES256:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!ECDSA:CAMELLIA256-SHA:AES256-SHA:CAMELLIA128-SHA:AES128-SHA
+ssl_prefer_server_ciphers = yes
+ssl_cipher_list = EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA256:EECDH:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!IDEA:!ECDSA:kEDH:CAMELLIA128-SHA:AES128-SHA
+ssl_options = no_compression
 # Automatically regenerates every week
 ssl_dh_parameters_length = 2048
 log_timestamp = "%Y-%m-%d %H:%M:%S "
diff --git a/data/conf/nginx/site.conf b/data/conf/nginx/site.conf
index ffc3f607..d754eae1 100644
--- a/data/conf/nginx/site.conf
+++ b/data/conf/nginx/site.conf
@@ -5,9 +5,9 @@ server {
   ssl_certificate_key /etc/ssl/mail/key.pem;
   ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
   ssl_prefer_server_ciphers on;
-  ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH";
+  ssl_ciphers 'EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA256:EECDH:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!IDEA:!ECDSA:kEDH:CAMELLIA128-SHA:AES128-SHA';
+  add_header Strict-Transport-Security "max-age=15768000; includeSubDomains";
   ssl_ecdh_curve secp384r1;
-  add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload";
   index index.php index.html;
   server_name _ autodiscover.* autoconfig.*;
   error_log  /var/log/nginx/error.log;
diff --git a/data/conf/postfix/main.cf b/data/conf/postfix/main.cf
index 6912d6b4..4f365677 100644
--- a/data/conf/postfix/main.cf
+++ b/data/conf/postfix/main.cf
@@ -69,12 +69,16 @@ smtpd_tls_dh1024_param_file = /etc/ssl/mail/dhparams.pem
 smtpd_tls_eecdh_grade = strong
 smtpd_tls_exclude_ciphers = ECDHE-RSA-RC4-SHA, RC4, aNULL
 smtpd_tls_loglevel = 1
-smtpd_tls_mandatory_ciphers = high
-smtpd_tls_mandatory_exclude_ciphers = ECDHE-RSA-RC4-SHA, RC4, aNULL
+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
 smtpd_tls_security_level = may
-tls_high_cipherlist = EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH:+CAMELLIA256:+AES256:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!ECDSA:CAMELLIA256-SHA:AES256-SHA:CAMELLIA128-SHA:AES128-SHA
+tls_ssl_options = NO_COMPRESSION
+tls_high_cipherlist = EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA256:EECDH:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!IDEA:!ECDSA:kEDH:CAMELLIA128-SHA:AES128-SHA
 virtual_alias_maps = proxy:mysql:/opt/postfix/conf/sql/mysql_virtual_alias_maps.cf, proxy:mysql:/opt/postfix/conf/sql/mysql_virtual_spamalias_maps.cf, proxy:mysql:/opt/postfix/conf/sql/mysql_virtual_alias_domain_maps.cf, proxy:mysql:/opt/postfix/conf/sql/mysql_virtual_alias_domain_catchall_maps.cf
 virtual_gid_maps = static:5000
 virtual_mailbox_base = /var/vmail/