[exim] Specifying smtp_ratelimit_rcpt

I'm using smtp_ratelimit_rcpt = 4,0.25s,1.015,4m as referenced in the Exim
docs but would like to specify a different option (more lenient) for a
particular server.

In fact, I'd like to have a whole different set configuration options for
this one server.

But, I'm not sure how to do so.

Is there a way to use one set of configurations for the "world" and another
set of configs for specific server (s)??

Stephen