Le mercredi 5 août 2009 18:31:04, David B Funk a écrit : > On Wed, 5 Aug 2009, Luis Daniel Lucio Quiroz wrote: > > Hi SAs, > > > > Well, as far as i am receiving email from my domain to my domain. I dont > > want to block it because there are about 10% of email that is okay. I'd > > like to know if there is a plug or a rule for SA to give more grade if > > email comes from other ip than MX. > > > > TIA > > > > LD > > Assuming you have control over the DNS for your domain, publish an > SPF record to state which machines/IP-addresses are valid email sources > for your domain. Then when spammers forge your addresses it will fail > the SPF tests and SA will automagically add points to those messages. > (it may also help to reduce back-scatter abuses of your domain). > > There are various online tools to create and test SPF records, see: > > http://old.openspf.org/wizard.html > http://www.kitterman.com/spf/validate.html
SPF is DKIM or is other technique?
