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Diffstat (limited to 'gnu/usr.sbin/sendmail/cf/README')
| -rw-r--r-- | gnu/usr.sbin/sendmail/cf/README | 43 |
1 files changed, 13 insertions, 30 deletions
diff --git a/gnu/usr.sbin/sendmail/cf/README b/gnu/usr.sbin/sendmail/cf/README index 1a2bc5b17bb..bb30698d9da 100644 --- a/gnu/usr.sbin/sendmail/cf/README +++ b/gnu/usr.sbin/sendmail/cf/README @@ -1242,13 +1242,10 @@ use_client_ptr If this feature is enabled then check_relay will override about check_relay, {client_name}, and {client_ptr}. dnsbl Turns on rejection of hosts found in an DNS based rejection - list. If an argument is provided it is used as the domain - in which blocked hosts are listed; otherwise it defaults to - blackholes.mail-abuse.org. An explanation for an DNS based - rejection list can be found at http://mail-abuse.org/rbl/. - A second argument can be used to change the default error - message. Without that second argument, the error message - will be + list. The first is used as the domain in which blocked + hosts are listed. A second argument can be used to change + the default error message. Without that second argument, + the error message will be Rejected: IP-ADDRESS listed at SERVER where IP-ADDRESS and SERVER are replaced by the appropriate information. By default, temporary lookup failures are @@ -1279,13 +1276,6 @@ dnsbl Turns on rejection of hosts found in an DNS based rejection See below (EDNSBL_TO) for an explanation. - NOTE: The default DNS blacklist, blackholes.mail-abuse.org, - is a service offered by the Mail Abuse Prevention System - (MAPS). As of July 31, 2001, MAPS is a subscription - service, so using that network address won't work if you - haven't subscribed. Contact MAPS to subscribe - (http://mail-abuse.org/). - enhdnsbl Enhanced version of dnsbl (see above). Further arguments (up to 5) can be used to specify specific return values from lookups. Temporary lookup failures are ignored unless @@ -2631,22 +2621,16 @@ as value part in the access map. Taking the example from above: Mail can't be sent to spammer@aol.com or anyone at cyberspammer.com. That's why tagged entries should be used. -There are several DNS based blacklists, the first of which was -the RBL (``Realtime Blackhole List'') run by the MAPS project, -see http://mail-abuse.org/. These are databases of spammers +There are several DNS based blacklists which can be found by +querying a search engine. These are databases of spammers maintained in DNS. To use such a database, specify - FEATURE(`dnsbl') - -This will cause sendmail to reject mail from any site in the original -Realtime Blackhole List database. This default DNS blacklist, -blackholes.mail-abuse.org, is a service offered by the Mail Abuse -Prevention System (MAPS). As of July 31, 2001, MAPS is a subscription -service, so using that network address won't work if you haven't -subscribed. Contact MAPS to subscribe (http://mail-abuse.org/). + FEATURE(`dnsbl', `dnsbl.example.com') -You can specify an alternative RBL server to check by specifying an -argument to the FEATURE. The default error message is +This will cause sendmail to reject mail from any site listed in the +DNS based blacklist. You must select an DNSB based blacklist domain +to check by specifying an argument to the FEATURE. The default +error message is Rejected: IP-ADDRESS listed at SERVER @@ -2668,8 +2652,7 @@ where IP-ADDRESS and SERVER are replaced by the appropriate information. This FEATURE can be included several times to query different -DNS based rejection lists, e.g., the dial-up user list (see -http://mail-abuse.org/dul/). +DNS based rejection lists. Notice: to avoid checking your own local domains against those blacklists, use the access_db feature and add: @@ -4605,4 +4588,4 @@ M4 DIVERSIONS 8 DNS based blacklists 9 special local rulesets (1 and 2) -$Revision: 1.24 $, Last updated $Date: 2006/03/22 18:43:52 $ +$Revision: 1.25 $, Last updated $Date: 2006/08/13 13:01:48 $ |