>The closest you can come is date + poster, which in practice is unique for
a list >with human posters (as opposed to alert scripts or the like). I need
to think about >this some more, but with date and poster (which WA does
have), it should be >possible to craft a slower but persistent link that
will work as long as you do not >delete the message.
>
>  Eric

Can we have an example on how to do this please.

Thanks.

Wayne