Postfix's main.cf

[Rainer Müller]

Charles Darwin wrote:
> I would like to do 2 things:
> 1. send emails over the Internet either using my ISP's smtp server or  
> gmail's smtp

I have a similar setup using instructions from this site:
<http://www.hserus.net/wiki/index.php/Postfix>

But I am using postfix provided by Apple.

> 2. send messages to other machines on my network in a p2p fashion. My  
> question I guess is would that require to host a mail server on at  
> least one of the machines involved? If so then is postfix already  
> setup for that?

If you want to send mails to other machines, all of them need a mail server.

Rainer