Configure TLS in Postfix and Dovecot

Use the folowing for postfix's smtp client

smtp_sasl_auth_enable = no
smtp_sasl_password_maps = hash:/etc/postfix/smtp.pass
smtp_sasl_security_options = noanonymous
smtp_tls_security_level = may
smtp_sasl_tls_security_options = $smtp_sasl_security_options
smtp_sasl_tls_verified_security_options = $smtp_sasl_tls_security_options
smtp_tls_loglevel = 1
smtp_tls_mandatory_protocols = !SSLv2, !SSLv3
smtp_tls_protocols = !SSLv2, !SSLv3, TLSv1, TLSv1.1, TLSv1.2

Here is the section for the smtp server

smtpd_sasl_auth_enable = no
smtpd_use_tls = yes
smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3
smtpd_tls_protocols = !SSLv2, !SSLv3, TLSv1, TLSv1.1, TLSv1.2
smtpd_tls_mandatory_ciphers = high
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
smtpd_tls_security_level = may
smtpd_tls_cert_file = /etc/pki/tls/certs/homelinux.crt
smtpd_tls_key_file = /etc/pki/tls/private/homelinux.key
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
smtpd_tls_session_cache_database = btree:/var/lib/postfix/smtpd_tls_cache
tls_random_source = dev:/dev/urandom
smtpd_tls_eecdh_grade = ultra
smtpd_tls_dh1024_param_file = /etc/postfix/dh_1024.pem
smtpd_tls_dh512_param_file = /etc/postfix/dh_512.pem
tls_preempt_cipherlist = yes