"Many providers" - any concrete examples? For an SPF/DKIM'd server that's been at the same IP for nearly a decade and had not a single spamming incident. PS. T

"Many providers" - any concrete examples? For an SPF/DKIM'd server that's been at the same IP for nearly a decade and had not a single spamming incident. PS. The list is immaculately maintained, the server is configured as properly as it gets and very conservatively rate-throttled. There's nothing obvious.