On Fri, Jul 29, 2016 at 05:41:25PM -0400, Alex wrote:
> 279628D68138D33026 Fri Jul 29 17:09:21 salest...@example.com
> (host mailstore1.secureserver.net[72.167.238.32] refused to talk to
> me: 421 p3plibsmtp01-06.prod.phx3.secureserver.net bizsmtp Connection
> refused, too many sessions from
> I realize that by setting initial_destination_concurrency to 1 it's on
> a per-domain basis, which is what I believe I need.
That is not what the documentation says. First, it is a different
parameter name that causes the switch in concurrency scheduling,
and second, the behavior is the exact op
