NormanM said:
Think again; there is more to the "signature" of a post than just the
posting email address.
Assuming you are referring to a data set, and not the actual Usenet term
signature" said:
And I do own the domain which is part of that
signature in my posts, so even though I use a posting email address in the
'.invalid' domain, I can still prove forgery if somebody pretends to be me.
If you mean this:
Message-ID: <
[email protected]>
That can also be easily manipulated. And your domain is not in there. I see no
..com, .org, .net, no "dot" anything except .invalid.
The only other header fields of interest that are unique to your "signature" as
you call it are:
Organization: Yu-ya
Keywords: TENKODAA
X-Host: kozue.aosake.net
The Message-ID, Organization, Keywords, and X-<anything>, are easily set on the
newsreader end to display anything you want.
I assume that's you in San Jose, California that owns aosake.net. Again, the
terms of service do not prevent a forger from putting your domain name in an
(x)-field. If you use an email address like
[email protected] in your
"From:" field you will be 100% protected if someone forges you that way.
You could also make an announcement that only messages containing your valid
email address are authentic. If it's a real problem then you can digitally
'sign' your posts with PGP.