FreeBSD - Configure sendmail masquerading

Notes on masquerading your domain name , I needed that since one SMS gateway will not accept my nagios@server.domain.com emails , this setting allowed nagios to send the email as nagios@domain.com

• tar zcf etc_mail_backup.tgz /etc/mail !!!

• cd /etc/mail

• sudo make cf

• sudo vi hostname.mc

• add:MASQUERADE_AS(domain.com)dnl
  FEATURE(masquerade_envelope)dnl
  FEATURE(masquerade_entire_domain)dnl
  MASQUERADE_DOMAIN(domain.com)dnl

• make sure this is added BEFORE any “mailer” definitions

• sudo make

• sudo make installf

• sudo make restart

worked on FreeBSD 6.2