Yahoo has been having issues since October 16th. This is almost
definitely due to the new brute force zombie spammer. My own connection
traffic doubled in the space of two weeks, and almost all of that was
zombie spam and backscatter to forged addresses. Yahoo probably didn't
have the infrastructure to handle the rapid increase in load which is
why they are still having problems after almost 3 weeks.
Regarding DomainKeys, this is just another one of those completely
ineffective E-mail ID techniques. The vast majority of messages that we
receive with DomainKeys are from spammers. Since all of these
techniques are built to target forging zombie spam, they would be better
off just doing something that better targtets zombie spam instead of
trying to push yet another E-mail ID scheme.
Matt
David Barker wrote:
Just throwing this out there. I had heard that Yahoo.com was using
greylisting on all email that did not support domain keys. Don't now if it
is true, perhaps a rumor may be worth checking out.
David B
www.declude.com
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dave
Beckstrom
Sent: Thursday, November 02, 2006 11:34 AM
To: declude.junkmail@declude.com
Subject: [Declude.JunkMail] OT: Yahoo delivery problems
Hi Everyone,
This isn't a Declude question but with all of the expertise here I knew
someone could help. Please forgive the off-topic message.
I'm receiving a bunch of deliver failures today for Yahoo. The message is:
Failed Recipient: [EMAIL PROTECTED]
Reason: Remote host said: 451 Message temporarily deferred - [190]
I searched google and I searched Yahoo's site to see if I could find an
explanation of this message -- no joy.
I didn't know if it meant they are blocking our IP or if Yahoo was having
problems. It sounded to me like they are blocking us.
I could not find anything on Yahoo's site about who to contact, what the
message means -- nothing.
Can someone shed some light on what may be going on?
Thanks,
Dave
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