I think you've misread something when replying to me. I didn't say - nor did anyone I can see - to re-qualify a list with an opt-in.
Personally I'd check format once, then use it, then delete emails after 3 bounces.
If a website based list, though, I'd certainly start using a double opt-in for any new emails added.
[Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings] [Donations and Support]
