Linked by Thom Holwerda on Sun 25th Feb 2007 21:51 UTC, submitted by falko
Internet & Networking "This tutorial shows how to implement SPF in a Postfix 2.x installation. The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery. There are lots of SPF extensions and patches available for Postfix, but most require that you recompile Postfix. Therefore we will install the postfix-policyd-spf-perl package from openspf.org which is a Perl package and can be implemented in existing Postfix installations (no Postfix compilation required)."
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Any experiences?
by remiss on Mon 26th Feb 2007 12:24 UTC
remiss
Member since:
2006-01-24

Anyone here tested spf and have any experiences with it?

Reply Score: 1

spf in dns record
by Gadrel on Mon 26th Feb 2007 13:53 UTC
Gadrel
Member since:
2005-07-06

the article fails to mention why a person wouldn't just implement SPF as a TXT record in their DNS server... the whole Postfix thing looks complex compared to say adding this one line to the DNS record.

example.org. IN TXT "v=spf1 a mx -all"

I do have my work email setup with SPF and will be setting up a customer as well, however, SPF has its limitations. [there is a SPF checking plugin for Thunderbird which is fun to play with]

Reply Score: 2

oh, got it
by Gadrel on Mon 26th Feb 2007 14:07 UTC
Gadrel
Member since:
2005-07-06

it's for the receiving side of things...I think about the sending side ...

Reply Score: 1

use it with spamassassin
by r0b0 on Mon 26th Feb 2007 14:22 UTC
r0b0
Member since:
2006-09-21

It's also an option to have the SPF checks in SpamAssassin instead of in Postfix. See http://wiki.apache.org/spamassassin/SingleUserUnixInstall#head-3f2b...

Reply Score: 1

RE: use it with spamassassin
by hemry on Mon 26th Feb 2007 20:26 UTC in reply to "use it with spamassassin"
hemry Member since:
2005-07-06

It would add aditional overhead, its better to reject spammers at the session.

Reply Score: 1