sendmail Notes filter using dnsbl ?

[Larry Basford]

I have upgraded to 8.11 sendmail but the 4m version is questionable. How do I get it to use MAPS RBLSM ?
instruction says to add
FEATURE(dnsbl)

[Jordan Bean]

Bad news. The MAPS RBL+ is no longer a free service. It is available by subscription to permit a clients' name servers to host a slave zone accessible only to the clients' mail servers.

If you want to use free dnsbls, try these:

FEATURE(dnsbl,relays.ordb.org)
FEATURE(dnsbl,list.dsbl.org)
FEATURE(dnsbl,bl.spamcop.net)
FEATURE(dnsbl,dnsbl.$m)

The first three are currently free:
http://ordb.org/
http://dsbl.org/
http://spamcop.net/

The last one would be your own in-house dnsbl.

If the m4 stuff doesn't work, then you may manually add them to ruleset Basic_check_relay (see attached).

[Christopher Caldwell]

Run
/usr/contrib/sendmail/usr/newconfig/etc/mail/cf/cf/gen_cf

Select
15: DNS Denied
as an option (in addition to the options you normally use).