Scott,
Great idea! This is the kind of idea I was hoping for. Certainly it can be
spoofed until all mailservers utilize this test, but it can at least add to
negative weighting in the meantime...except for the trojan issue, of course.
Darin.
----- Original Message -----
From: "R. Scott Perry" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, December 15, 2003 6:54 PM
Subject: [Declude.JunkMail] SPF support to be added to next beta
We will be adding support for SPF ("Sender Permitted From", at
http://spf.pobox.com ) to the next beta of Declude JunkMail. This is a
system that lets owners of domains publish information on what mailservers
people can use to send mail from the domain. We expect that this can be
very useful in blocking spam (similar to the SPAMDOMAINS test), as well as
helping ensure that legitimate mail gets through.
http://spf.pobox.com/dns.html covers how to add an SPF record for your own
domain. At its simplest, if all your E-mail is coming from your
mailserver, and your mailserver is listed in your MX record, you would add
a TXT record of "v=spf1 +mx -all" for your domain. The SPF records always
start with "v=spf1"; the "+mx" means that any E-mail from an IP listed in
your MX records is good, and the "-all" is a default so that any other
E-mail is bad.
The SPF system is much, much more flexible than the SPAMDOMAINS test, and
it lets domain owners control the settings (which allows them to be much
more accurate). If widely implemented, it will make it much more difficult
for spammers to get their spam delivered.
-Scott
---
Declude JunkMail: The advanced anti-spam solution for IMail mailservers.
Declude Virus: Catches known viruses and is the leader in mailserver
vulnerability detection.
Find out what you've been missing: Ask about our free 30-day evaluation.
---
[This E-mail was scanned for viruses by Declude Virus
(http://www.declude.com)]
---
This E-mail came from the Declude.JunkMail mailing list. To
unsubscribe, just send an E-mail to [EMAIL PROTECTED], and
type "unsubscribe Declude.JunkMail". The archives can be found
at http://www.mail-archive.com.
_____________________________________
[This E-mail virus scanned by 4C Web]
---
[This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)]
---
This E-mail came from the Declude.JunkMail mailing list. To
unsubscribe, just send an E-mail to [EMAIL PROTECTED], and
type "unsubscribe Declude.JunkMail". The archives can be found
at http://www.mail-archive.com.
