Re: send e-mail without use sendmail

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Frank Cox wrote:
> On Wed, 31 Oct 2007 12:05:11 -0500
> Les Mikesell <[email protected]> wrote:
> 
>> You must have a real domain name to send email. 
> 
> Is there any technical reason (other than "we hate spammers") why email can't
> be sent to an IP address instead of a domain name?
> 
> I know that mail sent to [email protected] doesn't work, but have never
> really understood why...
> 
I think this is because TCP/IP is not the only transport mechanism
for e-mail. It is just the most common one now. Also, the same IP
address may receive e-mail for more then one host, or be a relay for
the real host. The host pointed to by the DNS records may be a
server that then forwards the mail to the "real" host using another
transport mechanism.

Mikkel
-- 

  Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!

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