vivek khera gabnnkheraorg feb 13 2008 250 pm victor duchovni wrote yes 25 adds support perdestination rate limits really intended users soho isp msas fact major isp inbound mx host rather sad list dozen remote sites isps universities nonprofits throttle delivery im keen implementing 25 proper rate limits rather faking concurrency limits isps actually need low concurrency limits rather rate limits also pita wed 06 aug 2008 000112 0500 comcasts 6 recipient per second limit