Currently Being ModeratedMar 5, 2013 8:25 AM (in response to RH1)
ProofPoint is filtering for iCloud and suddenly very aggressively. Many false positives. I have the same problem sending from my domain to mac/me adddresses. I have reported the problem to proofpoint but no resolution yet. Somehow need to escalate this to Apple''s attention because it is a problem for them if their customers cannot receive legitimate email.
Currently Being ModeratedMay 12, 2013 1:07 PM (in response to probable)
I, too, am now on Proofpoint's blocked list and unable to unblock my e-mail forwarding from earthlink to Apple. Since all of my e-mail correspondents now think my address is bogus, I am unreachable. Whoever hired Proofpoint needs to fix this problem.
Currently Being ModeratedMay 13, 2013 10:24 AM (in response to RH1)
You will need to report the false positive blocking to iCloud support. Be patient, some of the technicians are a little fuzzy on the concept. I think Apple needs to fire Proofpoint since they are taking money to make their users pretty unhappy. My e-mail forwarding from my business address to my iCloud address was falsely blocked and all of my correspondents got messages which made them think that my address no longer worked.