Comcast Cluster 2 Blocked

Comcast is now blocking us on the mail server on cluster2.

Hi. This is the qmail-send program at mail1.gohsphere.com.
I’m afraid I wasn’t able to deliver your message to the following
addresses.
This is a permanent error; I’ve given up. Sorry it didn’t work out.

******@comcast.net:
Connected to 204.127.198.26 but sender was rejected.
Remote host said: 550 64.71.228.12 blocked by
ldap:ou=rblmx,dc=comcast,dc=net → BL004 Blocked for spam. Please see
Discovery Hub - News & Technology

We have already sent them a request to unblock our IP.

Just FYI we have posted to the psoft private forum some of the reasons on this matter, as we found a very serious bug in the hsphere mail server. I can’t expand on it until further corrective action is taken but that will likley be done in the next 24 hours.

Our IP is not blocked at comcast now.