Quoting Tom Brown tom@ng23.net:
I need to set some of our boxes to send mail through our smarthost. In the sendmail.mc file i have set the smarthost and rebuilt the sendmail.cf file. When i send a mail locally on the box though i get this error
Diagnostic-Code: SMTP; 553 5.1.8 root@localhost.localdomain... Domain of sender address root@localhost.localdomain does not exist
What else do i need to edit as there is something that talks about sending from unresolvable domains but this is already allowed i think
FEATURE(`accept_unresolvable_domains')dnl
any ideas ?
The above 553 error was probably generated on your smarthost.
Make sure your host is not called "localhost.localdomain" (in /etc/sysconfig/network). Edit /etc/hosts and make sure your host name is not in the 127.0.0.1 line (put it into separate line with your host's IP address).