Wietse:
> At this time, only the Postfix SMTP client knows remote MTA name/IP
> address information, not the Postfix scheduler. You can use global
> settings such as per-transport process limits or rate delays, or
> kernel-based traffic shaping.
Marco Pizzoli:
> Thank you very much for your answer. I understand.
> Apart from the MX dynamic information, is there a way within Postfix to
> specify that specific rate limiting toward that specific hostname/ip
> address ?
Rate limits are implemented by the scheduler. As mentioned in my
earlier reply, the scheduler does not know about MX host names or
IP addresses. It's a classical layering problem.
Wietse