Re: VERPs versus batched delivery

[Roger Fajman]

> What if the list software did VERPs on one out every hundred messages, or
> maybe on only one message a day? Would you then get the list-cleaning
> advantages without the costs of doing it on every message?

That's the way that LISTSERV does it.  It works well.  The percentage of
VERPs can be specified by the list owner.

LISTSERV also limits the VERPs (it calls them probes) to one post be day,
rather than doing them on every post.