On 2016-06-10, [email protected] <[email protected]> wrote: > Hi, > > I'm running Exim 4.86.2 on FreeBSD 9.3 and I'm having an issue > whereby it is registered incoming mails as originating from hosts > without an rDNS record, but they do have an rDNS record. I've just > enabled the X-Host-Lookup-Failed ACL to add the extra header and it > confirms what I was seeing by enterpreting the "Recieved:" header. > > For example when sending from 93.191.32.251 I see: > > X-Host-Lookup-Failed: Reverse DNS lookup failed for 93.191.32.251 (failed) > > and > > Received: from [93.191.32.251] (port=49828 helo=asigra2.ldex.co.uk) > > > > but nslookup from the mail server itself provides: > > nslookup 93.191.32.251 > Server: 8.8.8.8 > Address: 8.8.8.8#53
Don't use google DNS, if you hammer them they'll start randomly denying your requests. install your own DNS. > Any clues as to why Exim is failing when nslookup/dig from the same > host using the same DNS server work? could be 8.8.8.8 not suited to production use. I've been using bind with no fowarders (just root-servers) for two years and the only times it's given the "wrong" answer is when the source DNS servers were misconfigured. (on debian linux this is the default configuration of bind) -- \_(ツ)_ -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
