In the readme file, it states: "In the config screen, put in the domain name of the POP server where the catch-all is located in the POP Server box."

How do I find the config screen?

I tried to edit the module php file, but am getting an error on my website display:
"Fatal error: Call to undefined function: get() in /usr/local/psa/home/vhosts/gogirlfighter.com/httpdocs/CMS/modules/mod_mambo_mail_lite.php on line 16"

Not sure why you edited the module, but there is no way I can help you on your own programming errors.

As for wthe config screen, log into your Mambo Admin Contrp panel, click site modules, then click on the Mambo Mail Lite module and there are your config settings.

Wow, thanks for your quick reply!

Maybe it's my version - 4.5 Stable-1.0.7

When I click on the module I get a blank parameters box. I edited the original php file because I was getting the error. I will restore the original, but how do I configure in this version?