| Sender Policy Framework (SPF) |
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SPF is designed to fight the kind of spam problems that show up most
heinously in Joe jobs; attacks forged at the envelope-sender level—the
return path. With SPF, a message transfer agent (MTA), such as
UNIX sendmail or Microsoft Exchange Server, uses SPF to verify the
envelope sender during SMTP time. If the envelope domain doesn't match
an IP (or range) registered as authorized to send from that domain, the
domains participating in Sender ID will fail that piece of mail at some
level and deal with it according to the local configuration. Profitability.net
currently supports SPF records. They may added right from your
control panel, or contact support@profitability.net for more
information.
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