On 5/4/2014 3:02 AM, Stan Hoeppner wrote: ... > 1. Create relay transports for the problem domains and limit > concurrency to those domains, until your sender reputation with Akamai > has increased to the point they allow parallel deliveries. > > 2. Contact the Akamai hostmaster and inquire as to what that threshold > is, and when you may expect to surpass it. ...
I forgot the simplest solution: Give the new server the IP address and forward/reverse DNS name of the old Postfix server, same HELO hostname, etc. That should fix this instantly, assuming this problem did not exist before. Your use of the term "old" implies you decommissioned the old box, which makes this the optimal solution. Cheers, Stan
