>>>>> "David" == David Saez Padros <[EMAIL PROTECTED]> writes:
>> You trimmed out the words "in the best case". i.e. the minimum >> value seen recently is 10%, the average (mean) over a period of a >> couple of years is 90-95%, and the maximum is 99.99%. David> well, i had to say that we reject more than 99.99% of the David> connections received If you get any real mail at all, then that is nonsense - you'd have to be getting, say, a half-million connects/day and less than 50 real emails per day, and you'll have had more than that many just from today's traffic on exim-users. That 99.99% peak figure was reached here during a period of a few hours during which we received more than _10 million_ connection attempts caused by blowback of all forms, at a domain used only by a handful of staff which normally gets a few thousand per day. David> but this does not mean that all of them are callouts. As I keep saying, if you're rejecting them at RCPT time, callouts, bounce blowback and C/R are not distinguishable. David> How many of this 90-95% of blowback uses a null sender David> envelope ?? Those are connections meeting the following criteria: 1) they got as far as RCPT TO 2) they had a null sender envelope, or one recognisably generated by a C/R or callout system 3) they were not in response to real mail Almost all had null senders. David> what do you mean by C/R ? Challenge/Response. -- Andrew, Supernews http://www.supernews.com -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
