Joey wrote:

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:')

<sarcasm> Whatever you do, don't post your SPF record to enable people to help you. </sarcasm>

Putting +ptr in your SPF record is asking for it; it's controlled by the ISP responsible for the IP, not by the person responsible for the domain; I'd be astounded if it was valid.

--
Corey Chandler / KB1JWQ
Living Legend / Systems Exorcist
Today's Excuse: We are a 100% Microsoft Shop

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