Comcast and mail header errors?

[Bruce Dawson]

Paul Lussier wrote:
> "Ben Scott" <dragonhawk at gmail.com> writes:
> 
> 
>>On 3/20/06, Paul Lussier <p.lussier at comcast.net> wrote:
>>
>>>Anyone seen the following type of header coming though Comcast's servers?
>>
>>  Hmmm.  Well, yes, grep tells me that I am.  Quite a bit, apparently.
>> Never noticed.  Never looked, either.  :)
>>
>>>The hostname and ip's have been changed.
>>
>>  Understandable, but that does make it more difficult to analyze
>>  the problem.
> 
> The one that prompted me to send this query was from Bruce's
> server...  I didn't really want to put his IP address and server name
> in an e-mail which will likely be indexed by every conceivable search
> engine :)

Upon seeing my name, my "ears" perked up...

I suspect Comcast isn't doing a double-reverse DNS lookup of the other
end of the connection. So it is probably seeing mail.gnhlug.org in the
header, but getting the "real" host name when it reverse look-ups the IP
address.

--Bruce