On Tue, 13 Jun 2017 18:15:50 -0400 Dianne Skoll wrote: If you make a rule that you *know* will be effective for a > pretty limited timespan, setting the expiry at the time of creation > seems more efficient to me than having to remember to go back and > expire it.
If you want it to work that way it can be done in an external script in about 10 lines. If you want a rule, or rules, to expire on a specific day put it in a file that starts with "YYMMDD-" in a separate directory. The script just needs to deal with the expired files, warn about any badly named files and generate a file containing a list of include lines.