RE: SPF record
- From: "John Tolmachoff \(Lists\)" <johnlist@xxxxxxxxxxxxxxxxxxx>
- To: "'[ExchangeList]'" <exchangelist@xxxxxxxxxxxxx>
- Date: Mon, 20 Sep 2004 12:13:49 -0700
For an explanation of what SPF is all about, read the links posted by
others.
There are 2 parts to implementing SPF:
1. Publishing SPF records for your internet domain name. This is simply a
TXT record in the DNS zone for your domain name. It tells what servers are
allowed to send e-mail from for your domain.
2. Checking for SPF records. This is done during the spam filtering process.
A spam filter with SPF capabilities will send a DNS query for the SPF record
of a domain. Depending on what the response is, it can take action.
"Declude Junkmail"(tm) for Imail was the first anti-spam software to add
implementation for checking for SPF records. www.dnsreport.com and
www.dnsstuff.com are sponsored by Declude and are provided free of charge to
the Internet community.
John Tolmachoff
Engineer/Consultant/Owner
eServices For You
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