When we send mail to Hotmail servers, they do not recognize our Sender ID. In the receiving mail source, it reads
Authentication-Results: hotmail.com; sender-id=temperror ...
when it should say pass as with every other one. Therefore our legitimate mails go to junk folder.
A few things to point:
- SPF is correctly done and works with every other big email providers such as Yahoo, Gmail etc.
- We submitted our Sender ID long time ago.
- We have signed up for JMR program.
- We have tried all of the steps above with another domain of ours and different IPs as well, nothing changed.
We have been getting this error for weeks. I wonder how people who have "pass" in the header do this.
I am aware that Sender ID is not the only thing affects deliverability, but I need to fix only Sender ID, as it seems to be hardest one to solve and probably this is the only problem we have. IP and domain are both new, and not on any blacklist.
Thanks in advance.