On Wed, 29 Oct 2003, Justo Alonso wrote:
> I set dns_again_means_nonexist = * to reject all "SERVFAIL" or
> "non-authoritative host not found'... but don't work... I have in the log:
>
> 2003-10-29 13:25:32 H=(mail.movilab.net) [195.53.251.5] F=<roig_p@???>
> temporarily rejected RCPT <proigb@???>: host lookup deferred for
> reverse lookup check
dns_again_means_nonexist applies when the DNS resolver function
res_search() fails and sets h_errno to the value TRY_AGAIN. Maybe the
resolver you are using gives some other error return in this case.
The way to test this is to run a test with DNS debugging turned on:
exim -d+resolver -bh 195.53.251.5
<enter SMTP commands here>
See what gets output by the resolver debugging, and see whether the Exim
debugging says
DNS lookup of xxx (xxx) gave TRY_AGAIN
or not.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
Get the Exim 4 book: http://www.uit.co.uk/exim-book
