local_name mail.example.com {
  ssl_cert = </etc/ssl/mail.example.com.crt
  ssl_key = </etc/ssl/mail.example.com.key
}

local_name mail.example.org {
  ssl_cert = </etc/ssl/mail.example.org.crt
  ssl_key = </etc/ssl/mail.example.org.key
}

local_name mail.example.net {
  ssl_cert = </etc/ssl/mail.example.net.crt
  ssl_key = </etc/ssl/mail.example.net.key
}