>>>>> "Alon" == Alon <[EMAIL PROTECTED]> writes:
Alon> RBLs (hey,. it's in the subject line!): Since no-one else seems to have responded... Alon> I can use RBLs like the following: [snip] Alon> but my concern is that at one point if I get lots of emails, Alon> I'll be actually considered as a "hostile" checker and get Alon> blacklisted for excessive checks. Alon> Is that likely to happen? No, providing you're staying within whatever terms and conditions apply to the specific DNSBLs you're using, and provided you're not deliberately breaking DNS caching. DNS queries are (from the publishing server's point of view) a pretty lightweight and efficient way to distribute the data. For a blacklist that lists individual IPs, updates frequently and is large enough to be useful, the break-even point for the blacklist publisher as to whether DNS queries or rsync is most efficient is typically somewhere between 1 million and 5 million queries per day. Not all DNSBLs are available for free rsync of course (Spamhaus certainly is not, haven't checked on the others you mentioned). For the ones that are, maintaining your own mirror is usually unwise unless you know _exactly_ what you're doing - you're more likely to have problems caused by your own setup breaking. The reduced latency for lookups isn't likely to be a significant benefit _unless_ you're out in the weeds somewhere with a slow or congested pipe. -- 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/
