On Sun, 17 May 2009, Carlos Williams wrote: > On Mon, May 11, 2009 at 8:59 PM, Sahil Tandon <sa...@tandon.net> wrote: > > On Mon, 11 May 2009, Carlos Williams wrote: > >> relayhost = > > > > The default value is empty, so no need to redefine it. > > I was told to add this value and leave it blank so that Postfix will > not be used as an open relay. Are you saying that I can remove this > completely as Postfix automatically does this regardless if it's > inserted in main.cf? I find it confusing to know / understand what > configurations Postfix auto assumes and what is required to be > specified in my main.cf.
I think you are confusing $relayhost with $relay_domains; the former is null by default while the latter, for compatibility with older releases, is set to $mydestination. Typically, you should also set $relay_domains to null. Search the mailing list for previous discussions on this topic. To see what Postfix "auto assumes" see the output of 'postfonf -d'. -- Sahil Tandon <sa...@tandon.net>