An announcement list is a mailing list which many people subscribe to but only one or a few people can post messages to. This would typically be used for newsletters, product announcements, press releases, news alerts, or publications. Subscribe and unsubscribe requests are sent to the public address .
Commands accepted are subscribe , unsubscribe , and help .
Once a month, subscribers will automatically receive the help message via e-mail. Mail sent to the public address by the moderators is ignored. Each announcement list has it's own secret address . No one should ever see this address except for those authorized to post, it acts like a password. When you want to post, prepare the message like a normal e-mail message.