In case you have not seen it: the new rblsmtpd (in the ucspi-tcp
package!) has:
Options:
* -r base: Use base as an RBL source. An IP address a.b.c.d is
listed by that source if d.c.b.a.base has a TXT
record. rblsmtpd
uses the contents of the TXT record as an error message for the
client.
* -a base: Use base as an anti-RBL source. An IP address a.b.c.d
is
anti-listed by that source if d.c.b.a.base has an A record. In
this case rblsmtpd does not block mail.
You may supply any number of -r and -a options. rblsmtpd tries each
source in turn until it finds one that lists or anti-lists
$TCPREMOTEIP.
(Sorry for polluting).
Mate
