North American Network Operators Group

Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Re: Hotmail/MSN postmaster contacts?

  • From: Al Iverson
  • Date: Thu Oct 25 15:09:25 2007

On 10/25/07, Weier, Paul <[email protected]> wrote:

> Any Hotmail/MSN/Live postmasters around?
> My company sends subscription-based news emails -- which go to thousands of
> users within Hotmail/MSN/Live.   I appear to be getting blocked recently
> after years of success.

Hotmail mail administrators are unlikely to be lurking on NANOG. But,
there are standardized processes one uses to reach out to them
regarding delivery issues. I would recommend you start here:

Reach out via that form, explain the situation, and ask for guidance.
Indicate to them that you are indeed using Sender ID. They'll likely
respond with info regarding JMRP, Hotmail's version of a feedback
loop, and SNDS, data Hotmail provides regarding how your mailings are
perceived by their systems. Both are valuable and highly recommended.

Issues like this are usually indicators of reputation problems;
generating too many spam complaints, hitting too many spamtraps, and
generating too many bounces. Not sure what your specific situation
would be, but proper handling of bounces and proper signup practices
are a must.

MAAWG, The Messaging Anti-Abuse Working Group, publishes a sending
best practices document. It might be a good place for you to start. It
can be found here:

If you're not able to get somewhere based on all of this, it might be
wise to seek some specific consulting on this front, or partner with
an email service provider, most of whom would manage these types of
issues for you, or in coordination with you.

Best regards,
Al Iverson
Al Iverson on Spam and Deliverability, see
News, stats, info, and commentary on blacklists:
My personal website:   --   Chicago, IL, USA
Remove "lists" from my email address to reach me faster and directly.