Apologies if this has been covered before but I have noticed that when I enable Jaguar's built-in firewall while my G4 iMac is serving as the Software Base Station, no other computers in my house can download their email. They are able to access web pages, but not to download email from the various mail servers. I presume this is a port issue and wonder if anyone could point me in the right direction as to what I need to do.
I have a cable broadband modem but no router, so cannot enable a firewall on the router to fix my security issue.
Thanks for you help.