Tomasz Chmielewski: > Is it possible to do rate limiting per MX, or a group of IPs, and not by > email address / domain? ... > But instead of listing every domain in transport_maps, I'd rather use > the MX values, or IP ranges - is it somehow possible?
This is not possible.
DNS lookups happen in the Postfix SMTP client.
Transport map lookups happen (in trivial-rewrite), before the
decision is made that mail will be delivered via SMTP.
Wietse
