send e-mail without use sendmail
bob.marcan at interstudio.homeunix.net
Fri Nov 2 10:56:48 UTC 2007
Ed Greshko wrote:
> Frank Cox wrote:
>> On Wed, 31 Oct 2007 12:05:11 -0500
>> Les Mikesell <lesmikesell at gmail.com> 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 joeblow at 123.456.789.001 doesn't work, but have never
>> really understood why...
> It is call "fault tolerance". In general, sending to a single IP address is
> has a single point of failure. If that system is down...email doesn't move.
> When you send to company.com there is what is known as an MX record that
> returns all the IP addresses that accept email for company.com and weights
> for the sending side to decided who to sent to first and failing that
> second, etc.
> Sending to IP addresses doesn't scale and isn't manageable.
joeblow@[123.456.789.001] does work.
Bob Marcan, Consultant mailto:bob.marcan at snt.si
S&T Slovenija d.d. tel: +386 (1) 5895-300
Leskoskova cesta 6 fax: +386 (1) 5895-202
1000 Ljubljana, Slovenia url: http://www.snt.si
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