It looks like I’m not the only one who’s been going to battle against Microsoft Hotmail’s anti-spam measures. Now Hotmail is rejecting emails from Earthlink accounts. We’ve seen our emails sent there being bounced for the past few days. Here’s the message:
[redacted]@hotmail.com
SMTP error from remote mailer after MAIL FROM:<[redacted]@[redacted]>
SIZE=3777:
host mx4.hotmail.com [65.55.92.184]: 550 SC-001 (SNT0-MC4-F19)
Unfortunately, messages from 207.69.195.66 weren’t sent. Please contact your
Internet service provider since part of their network is on our block list.
You can also refer your provider to
http://mail.live.com/mail/troubleshooting.aspx#errors.
Like many ISPs, Earthlink has its own anti-spam measures. I’ve not found anything on Earthlink’s website that explains the current Hotmail block, however.