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It makes me sad both links to the old messages are broken. This post is only 6 years old. The internet is too fragile.

and

Besides Archive.org, there's also another reliable source for the second email: http://harmful.cat-v.org/software/andy_tanenbaum

You can also read the original USENET post on comp.os.research here: https://groups.google.com/d/msg/comp.os.research/fw2frykLjOI...

I've thought of using Google Groups too, but to my surprise I wasn't able to find the messages by searching for one of the email subjects.