Feedback Loop https://fbl.apps.rackspace.com/

System Status http://status.apps.rackspace.com/

System Status http://status.emailsrvr.com/

DKIM http://dkim.org

DMARC https://dmarc.org

Sender Reputation

We allow our users to block from senders they don't trust. We also block all traffic from ips found on the following ip reputation sites:

• spamhaus (xbl, pvl, sbl) https://www.spamhaus.org
• senderscore/returnpath https://www.senderscore.org
• cloudmark https://www.cloudmark.com/en
• spamcop https://www.spamcop.net
• sorbs http://www.sorbs.net