Hello Abadiksa,
I am pleased to inform you that we have taken steps to implement a temporary mitigation to your mail delivery problem. The mitigation will take 24-48 hours to fully reflect in our system.
During the mitigation period your emails should not experience any issues arriving in Hotmail customer's inboxes. This period will also give our filters sufficient time to learn enough about your mailing practices that after the mitigation expires your mails shouldn't any issues with arriving in our Hotmail customer's inboxes. Hotmail has created group of programs that should benefit your mailings during this time. To help avoid future issues I would strongly suggest enrolling-in or implementing these if you have not already.
1. Segment your mailing infrastructure by IP. Marketing e-mail, transactional corporate, "forward to a friend" e-mail and signup e-mails should be sent from different IP's. This will help to identify what types of messages are being flagged by Hotmail customers.
2. Strengthen the sign up process. Confirm that you are using a double-opt-in sign up process. This will not help in removing existing Hotmail customers from your e-mail lists but it will confirm the authenticity of those who sign-up on for your e-mail campaigns and newsletters.
3. If you have any feedback loops setup with other ISPs you should look for trends to try and determine possible causes - a new data source? New advertisement? Maybe folks signing up don't recognize the mail?
4. Clearly mark your e-mails so that Hotmail customers are able to quickly and easily identify that they requested e-mails from your service.
5. Do some analysis on the data regarding complaints - look at Hotmail customers who have never clicked, opened, responded or bounced in any way. These poor performers could contain many bad addresses.
6. Clean up your lists. Remove those who do not want to receive the emails. Make the unsubscribe process more visible.
7. Enroll in the Sender Score program. This is the only Whitelist which Hotmail uses. It is owned and operated by Return Path. You can find information about this program at
Home - Sender Score Certified™.
8. Please visit
SenderBase® The IronPort Security Network or
OpenRBL IP-Address 69.59.20.175 (swalif.net) to verify that your IP is not being targeted by any 3rd party block lists.
Best Regards,
Jaime
Windows Live Hotmail Domain Support