How to set the From email address for mailx command?

Question

I am working on a KornShell (ksh) script running on a Solaris server that will send out an email when and error condition is met. I am sending the email via mailx

Answer 1

The package nail provides an enhanced mailx like interface. It includes the -r option.

On Centos 5 installing the package mailx gives you a program called mail, which doesn't support the mailx options.