On 5/11/2011 1:14 PM, David F. Skoll wrote:
On Wed, 11 May 2011 13:10:31 -0700
Ted Mittelstaedt<t...@ipinc.net> wrote:
Yahoo's SMTP mailers are unable to handle a standard
SMTP error 4xx, if they get one they abort the
transmission and return the message to the sender
Do you have evidence to back up that claim?
Yes, your Honor. (eyeroll)
> I don't believe
it's true. We use greylisting and Yahoo's servers don't seem
to have problems with it.
We have been using greylist-milter for years and all Yahoo's
IP ranges are listed in the exception list, even the ones that they
don't publish and you can only find by issuing a whois against the RIR
database.
Those listings weren't there when we set it up. They got there
after user complaints and me wasting time tracking them down.
It seems to me that Yahoo just isn't as good as Google or Hotmail
at preventing spammers from signing up and at blocking outbound spam.
Yahoo is an example of a company that had such a bright promise coming
out of the 90's but internally screwed everything up, from bringing
in a CEO who was completely out of his league (Terry Semel) and
allowing the same guy who did that to run the company (jerry lang)
who screwed the Microsoft deal then got into bed with Microsoft a
year later anyway.
They may have managed to replace the top brass there but the corporate
culture is still NIH.
Ted
Regards,
David.
