> Hi,
>
> I have an announce list of some 7000 subscribers.
>
> Each time a post is sent out, I get reports back of subscribers
> receiving 2 or 3 copies of the same post.
>
> I have been working through the subscriber list to see where a
> subscriber might have two addresses (not the same of course) but am
> finding examples where there is only one address from a whole domain
> and still they report multiple copies.
>
> Has anyone come across this problem where it was NOT a case of
> subscribers having multiple addresses?

Absolutely, see:
http://www.lsoft.com/manuals/lsv-faq.stm#5.6

> In other words, has a bug like this ever been reported with 1.8e?

You'll find there is no bug in LISTSERV. Between this and what Pete said
previously, you'll find the cause.