How about publishing an SPF record for postfix.org. This would work well: "v=spf1 mx include:cloud9.net ~all"
http://openspf.org/ http://old.openspf.org/wizard.html?mydomain=Postfix.org
How about publishing an SPF record for postfix.org. This would work well: "v=spf1 mx include:cloud9.net ~all"
http://openspf.org/ http://old.openspf.org/wizard.html?mydomain=Postfix.org