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Sender Policy Framework -- How to use it to fight Spam ?
Sender Policy Framework (SPF) - How to use it to Fight Email
Forgery
Spam is a real problem today. Forged email is a big part
of the spam problem. Have you ever received a spam email
from yourself? How many times have you received an email
you know to be spam from someone only to find out it came
from an invalid email address? When you try to block the
email by choosing block sender, the spammer simply changes
the email address to another variation and gets through
the block. Until recently, there wasn't much you could do
about it. Now there is.
What is Sender Policy Framework (SPF)?
SPF makes it easy for a domain, whether it's an ISP, a
business, or a school to say that they only send mail from
certain machines. If any other machine is claiming to send
mail, they are lying. SPF aims to prevent spammers from
ruining other people's reputation. When your machine receives
an email from another server that has implemented SPF, your
machine can easily tell if the incoming email really comes
from the server it says it belongs to. More information
about SPF can be found at http://spf.pobox.com/
By implementing SPF in your favorite application or on
your server, you can be sure that a spammer will never be
able to impersonate you when spamming others. Most well
known domains and email applications have already implemented
SPF on their servers and products. Some examples of vendors
that are already implementing SPF into their products include
Sophos, Symantec, Declude Junkmail, Brightmail, IronPort,
Ciphertrust, MailArmory, MailFrontier, Roaring Penguin Software,
Communigate Pro, and others.
Ready to fight email forgery? Install applications that
support SPF today and get protected from email forgery!
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