Thanks for the reply.
I'm sorry for the 64k ; it was suppose to be 64MB RAM. Deja vu on my old days of computing I think

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BTW, my distro is Fedora Core 1.
I may go with Squid as suggested.
I'm behind a dial-up modem connection. I want to automate the connection to the internet when needed and disconnects it after 5 minutes of idle activity.
For the mail
SMTP : if 5 mails in queue or a mail is present for 7 minutes it will auto-dial to the ISP
POP3 : Auto-dial every 2 hours to fetch mail or whenever a connection to the internet is established.
My Box will run Squid and a Mail Server (Postfix?) .
How do I do that?
NBJayme