John Mack wrote, in part: > I would like to separate subscribers into 2 groups - those that receive the newsletter > and advertisements ONLY and those that receive every message sent to the list > (discussions, newsletter, and advertisements). > > I plan to add the following topics by defining them in the list header: > > * Topics= NEWS,ADV,DISCUSSION > * Default-Topics= NEWS,ADV,OTHER You might consider omission of the discussion topic, allowing "other" to be discussion. Asking people to discuss stuff by always starting their subject lines with "Discussion:" or "D:" will be very difficult, unless there are very few discussionists. So I would consider using.. * Topics= News,Adv * Default-Topics= All When you want someone to be in your news/adv-only group, you simply remove "Other" as one of their topics. The chances of someone beginning a subject line with "News:", with ignorance of your topics is small, IMHO. There is, however, a good chance of someone replying to one of your "News:" postings using the same subject line ... and so now your news-only subscribers are viewing discussion! Since you cannot authorize posting by topic, your only choice will be to intervene via moderation. cheers, wayne