What about the following? I was thinking it might be nice if ipurge had a -s option for skipping "special" messages. That is, if you flag certain messages as special[*], then run ipurge -s on that folder, these flagged messages would not be deleted even if they otherwise matched the criteria for being removed. Thoughts?
Amos *-- some clients refer to flagged messages as "special" or "important". I'm not sure if there's an official name for this.