Incoming Ratelimit Whitelisting not working

I'm having difficulties whitelisting for a 3rd party anti-spam server.

Specifically, a client is using a service coming from spamh.com and i've added all the CIDR IP ranges to the access lists:
Sender verification bypass IP addresses
Trusted SMTP IP addresses

And the domain here:
Backup MX hosts

Still, the host is being rate-limited when I turn on
Ratelimit incoming connections with only failed recipients

And I'd rather not have to disable that for just this one client.

Most of the posts regarding the whitelisting of incoming, IP addresses seems to be outdated.

Here's my recent (as of October 2016) versions:
Cpanel: 11.58.0.31
Exim 4.87

Any help (or ideas) are greatly appreciated!

Thanks.

 

It seems to work now. The is my current hypothesis and hopefully it's useful for someone or someone could verify this actually works:

When I whitelisted the IP range in WHM ACL, it didn't work. (IP address was still blocking). This includes a restart of exim (but no reboot)

- The logs still said "IP rate limited"

- My theory is that something still tracked "X.X.X.X sent X e-mails in the last hour" and was ignoring the white-listing setting

- So I disabled all the rate-limiting settings in WHM and let a flood of e-mails come through

- Then I re-enabled the settings after a few minutes and now the whitelisting IP ACL settings work

I'm not sure if the above actually helped, or if i randomly wiggled wires and coincidentally the issue resolved.