>>>>> "Ian" == Ian Eiloart <[EMAIL PROTECTED]> writes:
>> For some months now we have used a HELO ACL to delay by 35 seconds >> all connections with suspicious looking HELOs. This is very >> effective at reducing the amount of spam that our servers receive, >> while not preventing "real" email getting through, because much of >> the current spamming software seems to drop the connection during >> the delay period. Ian> Is 35 seconds really necessary? Yes. Ian> It will fall foul of sender verification callouts, Cart/horse inversion error. In this case it is the sender verification callouts which are violating the protocol by timing out too soon. -- 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/
