linux - Mailx Configuration Without mailrc -

linux - Mailx Configuration Without mailrc -

i using mailx command in reddish hat, utilize command:

mailx -r 'boss@comp.com' -s 'email send' 'user@comp.com' < file_body

i don't have local configuration smtp server don't have user ~/mailrc mail service sent don't know way used...

i using postfix configuration in /etc/postfix , utilize commands mailq , on.

which configuration use?? utilize /etc/resolv.conf found smtp server? utilize route on /etc/sysconfig/network-scripts ????

your local scheme connecting isp's smtp server, or perchance straight mx comp.com.

linux smtp redhat postfix-mta mailx