"From" name changed in newsgroup posting

Hi - I just posted a query in alt.backup-software, using the server I'm
using now, and when the message appeared, the name in the "From" column was
"Me again" and the headers quote a spoofed email address that I used ages
ago (me@xxxxxx). I stopped using that when someone pointed out it
could be someone's real domain name.

But the name I'm posting under at present is "wasted" and has been for some
time, so why does that post appear with a different name and an old spoofed
email address.

Hopefully this post will appear as from "wasted"

Thanks

"JIP" <fred@xxxxxx> wrote in message
news:OpELVxWqIHA.2188@xxxxxx Forget it - 2 senior moments in quick succession

1. This wasn't the server I was using of course, because this is the MS
server.

2. I totally forgot when I came to view the newsgroup today (having posted
my original message last night) that I had actually posted it using an old
computer because this one was dismantled whilst decorating was going on -
and I'd never gotten around to changing newsgroup account settings on that
one.