Carlos Williams wrote: > On Fri, Dec 4, 2009 at 2:16 PM, Martijn de Munnik <mart...@youngguns.nl> > wrote: >> If sending e-mail via telnet without a username/password is possible it is >> also possible with a client. > > OK so from that note I gather something with my config is not secure > or wide open. Is this is a Postfix issue or something 'off-topic'?
The question is, are you trying to 'relay' through the server or sending to a domain that the server hosts? -Matt