Hi,
 
I'm trying to stop someone from subscribing and posting to a list.  It
looks like I need to use the filter command in my header. Before I do it
can someone confirm that
 
* filter= Also,[log in to unmask]
 
Will do the trick?  I'm including the pertinant documentation from
L-Soft below.  I was a little confused by the safe stuff.  The way I
understand it, if I use also, it will run the standard listserv filter.
It doesn't require the listserv maintainers approval, right?
 
Thanks
josh harmon
 
>-------------------------------------------
>Filter= Only | Also | Safe,net-address1,net-address2,....
 
>"Filter=" is checked when a user attempts to post or subscribe to a list (but
>not when the list owner issues an ADD command). The first word of this
>keyword is either "Only", "Also" or "Safe", and it is followed by a list of
>patterns such as 'X400MAIL@*' or '*@*.XYZ.EDU' (without the quotes). If
>"Also" is specified, your filter is used in addition to the standard LISTSERV
>filter; this is useful to register additional looping mailers, to prevent
>users behind broken gateways from subscribing until the problem is addressed,
>or to ban anonymous posters. LISTSERV has two built-in filters: a "minimal"
>one, which is used for safe lists, and a "safe" one which is used for lists
>running with "Safe= No". That is, the unsafe lists need a safe filter to
>avoid mailing loops; safe lists only need the minimal filter, but can be made
>even safer by selecting "Filter= Safe". This, however, prevents usernames
>such as 'root' from posting to the list, because they are included in the
>safe filter.
>
>If "Filter= Only" is used, the addresses you specify are the only ones which
>LISTSERV prevents from posting to the list. CAUTION: You should not use this
>option unless you also code "Safe= Yes", and even then you will want to ask
>your LISTSERV maintainer for permission. This option has been added mostly
>for LISTSERV maintainers with very specific problems to solve. The minimal
>filter is very small and you should never need to override it.
>
>Messages sent to the LISTSERV userid for execution are always checked with
>the minimal filter, as people with userids such as 'root' would otherwise not
>be allowed to subscribe to lists which were set up to allow them.
>
>Note that LISTSERV extracts as many e-mail addresses as it can from the
>userid being checked and runs them all through the filter. For instance if
>your list receives mail from [log in to unmask], LISTSERV will
>check [log in to unmask], [log in to unmask] and
>'mailer@searn' (via the 'internet.' tag).
>Joshua Harmon
>User Services Consultant
>Texas Christian University
>ext 6851
>
>