daily run output

[Carmel]

The "daily run output" has been displaying this message:

mailwrapper: no mapping in /usr/local/etc/mail/mailer.conf

This is the mailer.conf file:

#
# Execute the Postfix sendmail program, named /usr/local/sbin/sendmail
#
sendmail	/usr/local/sbin/sendmail
send-mail	/usr/local/sbin/sendmail
mailq		/usr/local/sbin/sendmail
newaliases	/usr/local/sbin/sendmail

I a running postfix without any problems on a FreeBSD-11 machine. Is
this something I should worry about?

-- 
Carmel