diff --git a/dovecot/conf/dovecot.conf b/dovecot/conf/dovecot.conf
index c25274ec..4b9af3b6 100644
--- a/dovecot/conf/dovecot.conf
+++ b/dovecot/conf/dovecot.conf
@@ -57,6 +57,8 @@ namespace inbox {
 ssl = yes
 ssl_cert = </certs/cert.pem
 ssl_key = </certs/key.pem
+ssl_protocols=!SSLv3 !SSLv2
+ssl_cipher_list=TLSv1+HIGH !SSLv2 !RC4 !aNULL !eNULL !3DES @STRENGTH
 
 ###############
 # Authentication