Telenor Mailrelay svartlistad?

This is the mail system at host smtprelay-b22.telenor.se which is relaying
messages sent by customers to Telenor Sverige AB and its subsidiaries
Bredbandsbolaget and Glocalnet.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

<KOMPIS@hotmail.com>: host mx1.hotmail.com[65.55.92.152] said: 550 SC-004
(SNT0-MC2-F18) Unfortunately, messages from 195.54.99.213 weren't sent. We
recommend that you contact your Internet service provider. The problem is
that too many unwanted messages have been sent from the following IP
address above. You can also refer your provider to
http://mail.live.com/mail/troubleshooting.aspx#errors. (in reply to MAIL
FROM command)
Reporting-MTA: dns; smtprelay-b22.telenor.se
X-Postfix-Queue-ID: 7EC6214908
X-Postfix-Sender: rfc822; MIN ADRESS
Arrival-Date: Sat, 21 Sep 2013 12:51:24 +0200 (CEST)

Final-Recipient: rfc822; KOMPIS@hotmail.com
Original-Recipient: rfc822;KOMPIS@hotmail.com
Action: failed
Status: 5.0.0
Remote-MTA: dns; mx1.hotmail.com
Diagnostic-Code: smtp; 550 SC-004 (SNT0-MC2-F18) Unfortunately, messages from
195.54.99.213 weren't sent. We recommend that you contact your Internet
service provider. The problem is that too many unwanted messages have been
sent from the following IP address above. You can also refer your provider
to http://mail.live.com/mail/troubleshooting.aspx#errors.