[geeks] A puzzling mail error

[Sridhar Ayengar]

Jeff Cole wrote:
> On Wed, Jun 25, 2008 at 02:48:10PM -0400, Rich Kulawiec wrote:
>> so "HELO com" doesn't work.  I'm guessing -- perhaps incorrectly -- that
>> this may be in part to disambiguate "com" the host from "com" the TLD,
>> or perhaps "com" my host from "com" your host.  I'll now pause to reflect
>> on the implications of host com in subdomain com in TLD com, thus com.com.com,
>> and how very badly that would make my head hurt if I had to debug the
>> DNS setup for it.
> 
> Cnet has com.com, so, if you go to cnet.com, you actually go to
> cnet.com.com. Bizzare.

Why not cnet.com.com.com?

Peace...  Sridhar