On Sat, 23 Mar 2002, Craig R. Hodges wrote:
> DNS black list lookups are cached by Exim, so a lookup based on the IP
> address or sender address is done at most once for any incoming
^^^^^^^^^^^^^^^^
> connection.
^^^^^^^^^^
>
> Am I right in believing that the next time a connection is made from the
> same IP, it will re-check with the RBLs and not skip checking because the
> IP is in some cache?
The cache only lasts for the duration of the incoming connection. I
should make this clearer in the documentation. Exim relies on the
nameserver cache for optimization over multiple connections.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
