Lena@???, 2010-03-08 14:04:
> and whitelist few senders which can resend a letter from other
> IP-addresses in a block larger than /24.
> I.e. use ${sg{$sender_host_address}{\N\.\d+$\N}{}}
I'd suggest to use ${mask:<IP address>/<bit count>} instead. regex is
not always the best solution. This also works with IPv6 (one should use
a different bit count for that, though).
> for greylisting instead of $sender_host_address .
Or, don't greylist the whole world by default, but only suspicious
connections, e.g. hosts listed in some dnslist (you can be very generous
about choosing them then), with unusual HELO/EHLO or from IPs which seem
to be dynamic. Works very fine here.
> I attached excerpts from my config (including the whitelist) to
> http://wiki.exim.org/DbLessGreyListingC
What's the big advantage over using the builtin sqlite support for
greylisting?
