If you are talking specifically about delays for mail destined for yahoo
accounts i can confirm that yahoo is "rate limiting" mail to it's users
(throttling back connections) likely for antispam reasons.

I manage a large mail system for the U of California and I have seen
delays for mail destined to yahoo for months now. Usually it stays in
our queues for hours, not days, and eventually gets delivered. Whomever
has access to the mail exchanger that the gerry list sends through
should be able to confirm if this is happening.

-john

Mike S wrote:
> At 03:16 PM 2/9/2008, Michael Sullivan wrote...
> Michael Sullivan <sandwichhead@yahoo.com> wrote:
>> This is a GREAT example of log jam from Gerry.
>
> What make you think it is Gerry? I already pointed out to you that
> Gerry didn't seem to be delaying email when you complained yesterday.
> It may be that yahoo has internal processing delays, or may be
> throttling email receipts or that one or more of their inbound mail
> servers is malfunctioning. Yahoo has 7 MX records (mail servers), and
> some of those resolve to multiple IP addresses. If one is
> malfunctioning, and doesn't accept mail from Gerry for some reason,
> Gerry will properly back off before retrying. Gerry runs qmail, so for
> a message delivered after 2 days and 1 hour, that would have been the
> 22nd delivery attempt.
> http://www.lifewithqmail.org/lwq.html#retry-schedule
>
> You can't just blame Gerry for delayed email - at least look at the
> headers and see when it was received by yahoo from gerry.
>
> I received the email from Gerry about 6 minutes after you sent it.
> Relevant headers:
>
>> Received: from gerry.vanagon.com ([71.126.148.6])
>> by box261.bluehost.com with esmtp (Exim 4.68)
>> (envelope-from <owner-vanagon@GERRY.VANAGON.COM>)
>> id 1JNA7O-00047c-RZ
>> for mikes@FLATSURFACE.COM; Thu, 07 Feb 2008 10:00:58 -0700
>> Received: from web52103.mail.re2.yahoo.com by gerry.vanagon.com (LSMTP
>> for
>> Windows NT v1.1b) with SMTP id
>> <0.0029F3BA@gerry.vanagon.com>; Thu, 7 Feb 2008 11:54:17 -0500