Your anti-spam address may be bogus, but it isn't invalid.  The classic
MS error is invalid.

On 16 Apr 99, at 11:42, Angus wrote:

>I have to change from [log in to unmask] [anti spam for
>usenet posts] to [log in to unmask] in the FROM: configuration, but have never
>changed the REPLYTO configuration from teh anti-spam address to the real one and
>as far as I know, never created a bounce doing that???
>