not sure why this is getting through

Hello All, I am receiving message from people faking like they are from our domain, when looking in the headers I see this: Received-SPF: permerror (mydomain.com: Junk encountered in mechanism '+ptr:') Read this on the spf site: If the permerror occurred because an SPF publisher uses

Re: not sure why this is getting through

2009/5/15 Joey j...@web56.net: Received-SPF: permerror (mydomain.com: Junk encountered in mechanism '+ptr:') “If the permerror occurred because an SPF publisher uses a mechanism not understood by an SPF client and the receiver does not reject the message due to the permerror, that mechanism