Options for the HACKs for check_* in sendmail 8.8 (beta)
Last Update 1999-11-24
The beta version of the
(last update: 1998-12-28)
introduces some new options, which are listed and explained here.
List of Options
Defines a class of local users who can only mail to local domains.
In this version, local refers to $=w.
The optional argument (default:
defines the name of the file of local user names.
(introduced in version 3.2.0, 1998-10-24).
can be used to refer to another
DNS based blacklist
should be defined as some URL pointing to an explanation.
(introduced in version 3.9.17, 1999-02-27).
The beta version fixes a bug in
Thanks to Nathan Edwards for the noticing the bug
and providing extended debugging information.
There is still a problem:
if mail is send from a sender (address, domain) that
is allowed to use the the server as relay,
then the sender address is not checked even if the
recipient is listed as
Proposal from Nathan Edwards for this case:
... go and LART the spammer personally with a big heavy object...
An experimental fix (not tested with 8.8) can be enabled by
The version numbers of the beta versions are not updated for each
change, I would run out of numbers too soon.
Just the date of the latest change is updated.
Please send comments to:
<ca at sendmail.org>
Disclaimer: the information provided may be inaccurate or outdated
if you find an error.