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SPF - Sender Policy Framework(SPF Record)

Postby chandranjoy » Sun Nov 21, 2010 3:52 pm

What is SPF?
SPF is an open standard created to stop forgery of FROM addresses. SPF helps mail servers distinguish forgeries from real mail by making it possible for a domain owner to say, "I only send mail from these machines." That way, if any other machines try to send mail from that domain, the mail server knows that the FROM address is forged.

This four-step wizard will guide you through the process of creating a new SPF record for your DNS domain. You should add this DNS record to your domain's DNS configuration. Note that you may need to manually edit the SPF record created by this wizard if you want to use some of the more advance features of the SPF format. For complete details please refer to the SPF record specification at

Step 1 of 4: Identify Your Domain

Please enter the domain name for which you want to create a new SPF record in the following Url's webpage.
(for example: ... fault.aspx

How does Sender ID Framework work?
1. Sender sends an e-mail to Receiver.
2. Receiver’s inbound e-mail server receives e-mail and calls its Sender ID Framework.
3. The Sender ID Framework looks up the SPF record of the domain that Sender is using for sending the mail.
4. The receiving Mail Transfer Agent (MTA) determines if the outbound Mail Server IP address matches IP addresses
that are authorized to send mail for the user.

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