RoadRunner has a policy limiting the number of emails sent per hour to its members from a specific IP: http://security.rr.com/spam.htm#ratelimit
. That link provides a mechanism to permit legitimate emails, "If you're finding that your server is being rate limited (and the reason is not due to too many recipients per message), the most likely solution available to you will be to have the party responsible for your server apply for enrollment in our feedback loop."
I have registered for this enrolled with 2 IP addresses, one was accepted, the other was rejected with, "Rejected IPs have generic or unresolvable PTR records." The problem is that the emails in question originate on the rejected host.
I NEED TO FIX SOMETHING SOON!
Here is our setup: this is a retirement system. We send pension checks every month to participants. Starting this month, we are emailing the check stub info.
We have a Windows Small Business Server 2003 which is the main mail server. It serves all incoming mail and most outgoing mail. This IP was approved.
We also have a Linux webserver on both the internal lan and with a separate IP. Although this was originally just a webserver, the cron/batch facilities on Linux made it easy to do automated jobs, including emailing pension check and general announcement info. outgoing smtp mail goes directly from this machine without first being routed through the Windows server. This is the IP being rejected.
How do I "resolve" or otherwise "ungenerify" this hosts PTR record? What can I do to fix this problem?