I am unable to receive emails  from a friend with a uwm.edu address.  She receives this back:

{removed email address}
SMTP error from remote mailer after MAIL FROM:<...@uwm.edu>
SIZE=3065:
host mx2.hotmail.com [65.55.37.120]: 550 SC-001 Mail rejected by Windows
Live Hotmail for policy reasons. Reasons for rejection may be related to
content with spam-like characteristics or IP/domain reputation problems. If
you are not an email/network admin please contact your E-mail/Internet
Service Provider for help. Email/network admins, please visit
http://postmaster.live.com for email delivery information and support


SMTP error from remote mailer after MAIL FROM:<...@uwm.edu>
SIZE=12166: host mx1.hotmail.com [65.55.37.72]: 550 SC-001 Mail rejected
by Windows Live Hotmail for policy reasons. Reasons for rejection may be
related to content with spam-like characteristics or IP/domain
reputation problems. If you are not an email/network admin please
contact your E-mail/Internet Service Provider for help. Email/network
admins, please visit http://postmaster.live.com for email delivery
information and support

This is happening to anyone that she writes to with a hotmail act. I can find no advice on what to do to solve this.

Thank you

I've escalated your concern to our Windows Live Hotmail Sender Support Team. They’ll now contact the administartor of uwm.edu to resolve this issue.