#The success template is used
when mail is delivered to mailbox, when an alias or list is expanded, or when mail is delivered to a system that does not announce DSN support.
success_template = <<EOF
From: MAILER-DAEMON (Mail Delivery System)
Subject: Successful Mail Delivery Report
This is the mail system at host $myhostname.
Your message was successfully delivered to the destination(s) listed below. If the message was delivered to mailbox you will receive no further notifications. Otherwise you may still receive notifications of mail delivery errors from other systems.
The mail system