1*41fbaed0StronSee http://www.openspf.org/Software for the current version of the 2*41fbaed0StronSPF policy daemon for Postfix. 3*41fbaed0Stron 4*41fbaed0StronSPF support is also available via MILTER plugins, such as sid-milter 5*41fbaed0Stronat http://sourceforge.net/projects/sid-milter/ which implements both 6*41fbaed0StronSenderID and SPF. 7