smtpd_use_tls = yes
smtpd_tls_cert_file = /etc/ssl/certs/domain.ru.crt
smtpd_tls_key_file = /etc/ssl/private/domain.ru.key
#smtpd_tls_CApath = /etc/ssl/certs
smtpd_tls_CApath = /etc/ssl/certs/rootCA.crt
smtpd_tls_loglevel = 2
smtpd_tls_received_header = yes