This posting on majordomo-users is the summary to a question I
(inappropriately) asked on list-managers, about what features of
Majordomo could be used to inhibit Olga and other recent spams.
The replies were mostly:
1. Use "restrict_post" in the per-list config file, available as of
majordomo-1.9x. This essentially implements an ALLOWED function.
2. If one is really desperate, use the existing moderation facility
and force all the list users to include an "Approved: password" line in
their headers. (ugh)
It was also pointed out that it is frequently convenient to include a
date in the comment field of addresses on a bounce list, so these can
be removed in a timely fashion at a future time.
These replies pointed to a possible majordomo enhancement that would
certainly have been useful to me in the past. The "restrict_post"
implements an ALLOWED function, which inhibits spams by keeping anyone
not sub-scribed to the list, from posting to the list. It would also be
useful to have a DENIED function, so that specific addresses of ex-list
members who have been hostile, or known spammers, can be kept from
sub-ing or posting to a list, esp. when the list-owner desires to keep
a list in "open" rather than "closed" subscription mode.
Also, to those particularly annoyed by spams, keep in mind that the
"list-outgoing" convention is widely used and it's probably just a
matter of time before spammers discover they are being kept off lists
and decide to try the -outgoing addresses instead.
--
Ed Arnold * NCAR * POB 3000, Boulder, CO 80307-3000 * yak: 303-497-1253
fax: 303-497-{1848,1804} * smtp: era@ucar.edu * www: http://www.ucar.edu/era
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