OT: Greylisting and Yahoo Mailinglists

[Chuck Swiger]

On Jan 15, 2008, at 1:13 AM, Heiko Wundram (Beenic) wrote:
> Additionally, I can't seem to make out a set of "subnets" from which  
> the
> messages arrive; I've so far identified at least five subnets that  
> Yahoo uses
> to send messages out (and I'm hesitant to add five subnets to the  
> whitelist,
> especially when they're not closely related in any way as Yahoos  
> subnets seem
> to be: 66.94.237, 66.163.168, 66.163.169, 69.147.103 and 209.131.38  
> is what
> I've seen so far from old messages at a quick glance).
>
> Anybody here have the same problem, and has rules for whitelisting  
> Yahoo
> mailing lists properly?

You didn't mention which mailserver or greylist software you are  
using, but the postgrey implementation (for use with Postfix) has this  
in postgrey_whitelist_clients:

# greylisting.org: Yahoo Groups servers (no retry)
scd.yahoo.com

...and you could choose to whitelist all of yahoo.com just as easily.

-- 
-Chuck