when I send an email to @hotmail I see this line on the source:
Authentication-Results: hotmail.com; sender-id=temperror (sender IP is xx.xxx.xxx.xxx) firstname.lastname@example.org; dkim=pass header.d=example.com; x-hmca=pass
As you can see there is
sender-id=temperror, how can I do to pass it?
I have SPF, DKIM, RDNS...how to add this sender-id ?