Re: [OT] Harvest netblocks of good MTAs from SPF for whitelisting from greylisting

Nicolai <[email protected]> Wed, 13 Feb 2013 13:05:06 -0600
Newsgroups gmane.mail.spam.spf.discuss
Message-ID <[email protected]>
On Wed, Feb 13, 2013 at 12:57:46AM +0000, alan wrote:

> either way this use of SPF is not relevant to this list really?

Well, seeing as there hasn't been any discussion on the list since
September, it can't hurt, right?  Besides, there was some discussion of
pyspf, which I didn't know about.

To the OP, here's what I'd do in your shoes: grab a good domain
whitelist and generate IPs & netblocks using some SPF tool.  If a
whitelist is not available to you, just generate your own based on
normal traffic, using the top domains list from Alexa as a guide.

http://s3.amazonaws.com/alexa-static/top-1m.csv.zip

Nicolai