Hi, I'm currently using Mailman version: 2.1a3+ I have set VERP_PASSWORD_REMINDERS = 1 VERP_PERSONALIZED_DELIVERIES = 1 VERP_DELIVERY_INTERVAL = 10 but the messages sent seem to never be VERP'ed, not even one in ten sent. What have I missed? (It VERPs everything when I set VERP_DELIVERY_INTERVAL = 1) -- Fil