smartlist 3.15-26 (amd64 binary) in ubuntu lunar

 SmartList is a mailing list manager built on top of the procmail
 mail processing package. Some features:
  * Enough intelligence to overcome the ignorance of some subscribers
    (will direct subscribe and unsubscribe requests away from the regular
    list and automatically onto the -request address).
  * No hardwired format for (un)subscribe requests (i.e. new subscribers
    need not be educated, unsubscribing users do not need to remember any
    particular syntax).
  * Intelligent automatic removal of addresses from the list that cause too
    many bounces.
  * Duplicate submissions are eliminated automatically.
  * You can set up a mailing list to function as a standalone mail archive
    server.