I currently have a VERY large ( >100k) announce only list (always moderated) running mailman 2.1 under Postfix.
For performance reasons I'm considering splitting this list into 26 sublists based on the first letter of each subscriber email. I would then use an umbrella list to send to all of the sublists at once. As I understand it, unless I want to separately approve the message for the 26 sublists I need to allow at least one email address to post unmoderated on ALL of the sublists. This is very scary since spammers currently try to post on my current large list almost daily. (1) How do I protect the sublists from spammers who spoof the "from" address in their emails? (2) Can I protect these sublists from ALL emails other than those from localhost and my umbrella list? (3) Are there any other methods that people use for Umbrella announce only lists? One other method I've been thinking about is using a grep expression to define a sender address that is only valid for one day each month. Any idea how I could do this? ------------------------------------------------------ Mailman-Users mailing list [EMAIL PROTECTED] http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ This message was sent to: [email protected] Unsubscribe or change your options at http://mail.python.org/mailman/options/mailman-users/archive%40jab.org
