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.


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

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