>>>>> "Renaud" == Renaud Allard <[EMAIL PROTECTED]> writes:
Ian> but my sender verification callouts don't fill mailboxes or Ian> server queues. And, they do stop lots of spam. >> Only at the expense of others, which isn't acceptable. Renaud> In a perfect world we would need neither callouts neither Renaud> blacklists as people wouldn't send spam in the first Renaud> place. But we are not in a perfect world. Spam is bad because it is the use of other people's resources without permission. Trying to block spam by using other people's resources without permission is just as bad as sending spam. Renaud> It is a fact that callouts stop spam, are better than full Renaud> fledged bounces (or TMDA) and don't fill mailboxes. Renaud> It is also a fact that DNS lists that list IP ranges without Renaud> any proof of spam just prevent other people from sending Renaud> ham. This is also at the expense of these "others", which is Renaud> also unacceptable. No-one's forcing you to use any DNS list. No-one's forcing you to expend server resources in providing any DNS list. DNS lists can't interfere with your ability to _receive_ your own mail, or to send mail to other servers that want to receive your mail. None of this is true for callouts. We are forced to expend server resources in handling callouts. Our ability to receive our own email is impaired by other people's use of callout verification. (How well would your mailserver stand up to receiving four orders of magnitude more connections per second than it should?) Renaud> So we are just talking on what expense is the worst. No. We're talking about WHOSE EXPENSE IT IS. Expend your own resources how you choose; but once you start presuming to think that you have some claim on other people's resources then you have crossed the line. -- 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/
