Authentifikasi SMTP postfix TLS

Setup Postfix TLS Encryption
mkdir /etc/postfix/ssl
cd /etc/postfix/ssl
openssl genrsa -des3 -rand /etc/hosts -out smtpd.key 1024
chmod 600 smtpd.key
openssl req -new -key smtpd.key -out smtpd.csr
openssl x509 -req -days 3650 -in smtpd.csr -signkey smtpd.key -out smtpd.crt
openssl rsa -in smtpd.key -out smtpd.key.unencrypted
mv -f smtpd.key.unencrypted smtpd.key
openssl req -new -x509 -extensions v3_ca -keyout cakey.pem -out cacert.pem -days 3650

nano /etc/postfix/main.cf
smtpd_tls_auth_only = no
smtp_use_tls = yes
smtpd_use_tls = yes
smtp_tls_note_starttls_offer = yes
smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key
smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt
smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
tls_random_source = dev:/dev/urandom
/etc/init.d/postfix restart

Konfigurasi Dovecot TLS
vim /etc/dovecot/dovecot.conf

ssl_disable = no
ssl_key_file = /etc/postfix/ssl/smtpd.key
ssl_cert_file = /etc/postfix/ssl/smtpd.crt
ssl_key_password = admin
ssl_ca_file = /etc/postfix/ssl/cacert.pem



Konfigurasi Mail Client Evolution