Setting a specific list member to read-only

Hi all,
I could need some help with a task I haven't seen covered in the FAQ or by a Google search:
I'd like to temporarily block a member of a list from posting messages. This member is already set to "moderated" so I can reject/discard his mails manually. I cannot ban him entirely because he is entitled to read the list still by our community rules. Is there a way I can have his mails automatically rejected or discarded to make him a read-only member? I'd need something like a inbox filter rule for this specific list member's address, i.e. blacklist his postings without removing him from the roster.
Thanks for any hints, Hagen Pfaff postmaster@attac-m.org

On 4/2/2013 5:33 PM, Attac München - Postmaster wrote:
If he's the only moderated member you could set member_moderation_action to Discard or Reject and if Reject, set an appropriate member_moderation_notice.
You could use Privacy options... -> Spam filters -> header_filter_rules with a regexp like
^from:.*user@example\.com
(these are matched case-insensitively) and a Reject or Discard action, but Reject here will just give the generic 'The message headers matched a filter rule' reason.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

On 4/2/2013 5:33 PM, Attac München - Postmaster wrote:
If he's the only moderated member you could set member_moderation_action to Discard or Reject and if Reject, set an appropriate member_moderation_notice.
You could use Privacy options... -> Spam filters -> header_filter_rules with a regexp like
^from:.*user@example\.com
(these are matched case-insensitively) and a Reject or Discard action, but Reject here will just give the generic 'The message headers matched a filter rule' reason.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
participants (2)
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Attac München - Postmaster
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Mark Sapiro