[KLUG Members] Changing MTA on RHL

[Manu C S]

Hi,

I just installed postfix on RHL 7.3
After the installation when I run redhat-switchmail
to change my MTA from sendmail to postfix, only
Sendmail is shown as the available MTA.

I checked my installation and it seems okay --
all the files are installed in the proper locations
(/usr/sbin/postfix for executable, /etc/postfix for config etc)

Unfortunately I'm not supposed to uninstall sendmail from the system.
I'm trying to automate the installation of postfix, amavis, clamav
using a perl script. In the script, after postfix installation is
complete, I'm launching redhat-switchmail.

Is there any other command to change my MTA from 
sendmail to postfix?

Regards,
Manu