iCloud server blocking Earthlink forwarded emails
Looks like a problem that has happened before with respect to blocking of Roadrunner emails sent to people with me.com email address has resurfaced, this time with Earthlink. I have an old Earthlink account (at least 20 years old, which I keep only because of the number of online accounts linked to this email - almost 1000), and I have email forwarding set up on it to forward all emails to my me.com account, where I can review it at home or on one of my mobile devices. It has been working well for about 8 years.
Today, however, messages sent to my earthlink.net address are being bounced back to the sender due to this error:
host mx4.me.com.akadns.net [17.172.34.66]: 550 5.7.0 Blocked - see https://support.proofpoint.com/dnsbl-lookup.cgi?ip=207.69.195.100
It seems that the spam filtering service, proofpoint (who was at the root of the problem with roadrunner blocked emails before), has blacklisted several of Earthlink's IP addresses, probably because they were the source of some email spam. However, there are many legitimate emails also being relayed via these IP addresses, which are being blocked. I called Earthlink, and basically wasted 90 minutes talking to a level 1 tech ("try restarting your computer") and his supervisor ("it's Apple's fault, not ours"). I spoke with Apple, who was more receptive, but unable to help (escalated to iCloud engineers). I personally entered the IP information on ProofPoint's website via their online form for such inconveniences. I guess I'll just have to wait and see what happens. Any suggestions/feedback would be appreciated.
As an aside, I wish I could just jettison Earthlink after all these years - it's an archaic system, with horrendous email. But, I just don't have the time to go to literally hunderds of websites to update my email address. Anyone have any solutions that have worked for them?
Thanks!
Mac Pro, Mac OS X (10.7.5)