Stuart Gall wrote: > On 17 Oct 2006, at 23:57, Peter Bowyer wrote: > >>> I did come into such a problem. The resolution is quite simple, just >>> contact the owner of these domains (IE: cc the postmaster of these >>> domain when you send the evidence of their non compliance to >>> rfc-ignorant.org) and ask them to correct their mail servers. >>> For an example of a warning mail, you can look at >>> http://www.rfc-ignorant.org/tools/detail.php? >>> domain=asicorp.com&submitted=1161039519&table=dsn >>> (yes, I do submit them automatically and there are many per day) >> A side benefit of dsn.rfc-ignorant.org is that you can use that DNSBL >> as a 'whitelist' to skip around your callouts, since you won't get any >> useful information from calling out to domains that are listed there. > > I was trying to think of a way to use the RBL but since exim will > cache the negative response (callout_domain_negative_expire) is it > really worth it ? >
You will always have cache time or delays anyway. Time for the admin of rfc-ignorant to approve the listing, time of caching, time for dnsbl to refresh,... A way to _not_ do callouts for sites listed there is like this (to be modified depending on your own config): deny !dnslists = dsn.rfc-ignorant.org/$sender_address_domain !verify = sender/callout=20s,defer_ok,random > Stuart. -- .O. ..O OOO
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