ezmlm-gate(1)ezmlm-gate(1)NAMEezmlm-gate - Gate posts depending on message SENDER
SYNOPSISezmlm-gate [-0cCmMpPrRsSvVyY] [-q file] dir [modsubdir1] [modsubdir2
...]
DESCRIPTIONezmlm-gate checks if SENDER is in it least one of the subscriber lists
with base directory dir/modsubdir1, dir/modsubdir2, etc. If it is, the
message is posted via ezmlm-send to the list in dir. If not, the mes‐
sage is sent for moderation via ezmlm-store. The named subscriber list
directories must be either relative to dir or fall within dir.
The default is to send the message for moderation.
OPTIONS-cCQrR Passed on to ezmlm-send(1) and ezmlm-store(1).
-mMpPsSyY
Passed on to ezmlm-store(1).
-q file
Execute arbitration programs in file. Lines in file are exe‐
cuted just like in regular .qmail files with the difference that
all lines are assumed to be program names. See dot-qmail(5).
Programs are executed by /bin/sh and the message is on stdin of
the executed program. The leading ``|'' is optional. Comments
and blank lines are allowed. If a program exits 111, delivery is
deferred. If it exits 99, the message is sent to the list. If it
exits 0, the next line is executed. If it exits with any other
exit code, the message is sent for moderation. Subscriber status
per modsubdir1, modsubdir2, etc, is tested only if all the pro‐
grams have been executed and the final exit code is 0. Thus,
programs can cause moderation (100), posting (99), or defer the
decision to the next program and ultimately to subscriber sta‐
tus.
-0 Instead of running ezmlm-store(1) or ezmlm-send(1), print (to
stdout) the command and arguments that would have been run.
-v Display version information.
-V Display version information.
USAGEezmlm-gate is best used if you want to restrict posts to a set of
addresses using SENDER checks. Obviously, this is not secure, but it
can help quite a bit to keep garbage off the list. For more secure set‐
ups, see ezmlm-store(1). For other arbitration such as SPAM protec‐
tion, use the -q option. For instance, invoking ezmlm-reject(1) here
would cause failing messages to be sent for moderation rather that
being rejected.
Set up the list with a ezmlm-gate line in dir/editor and touch dir/mod‐
post. Add the moderator(s) (usually the list owner):
ezmlm-sub
dir
mod
moderator@host
This will via ezmlm-send directly distribute all posts from subscriber
addresses and send out the rest for moderation to the moderator(s) via
ezmlm-store. To test several subscriber databases, e.g. the list and
the list-digest subscribers, add the corresponding list directories to
the ezmlm-gate command line.
This can be expanded to include users that post from addresses other
than the one they are subscribed as: just create another directory
'addl', and a 'subscribers' subdirectory of it, and add 'addl' to the
ezmlm-gate command line. Now just add all problem addresses to the
'addl' address database using ezmlm-sub. The entire point is that post
from subscribers of any union of list go through, posts from identified
'aliases' go through and all others go for approval to the list owner.
Thus, legitimate users are never rejected and 'aliases' rapidly identi‐
fied by the owner/moderator and their handling automated one by one, by
simply adding them to 'addl'.
SEE ALSOdot-qmail(5), ezmlm(5), ezmlm-issubn(1), ezmlm-reject(1), ezmlm-
send(1), ezmlm-store(1)ezmlm-gate(1)
