Somewhat OT email addresses

[Bret Stern]

you should use a domain name with email. it may work internally,
or unreliably on the outside. mail delivery systems will generally
not want to work with ip numbers in email addresses.

-----Original Message-----
From: redhat-install-list-bounces at redhat.com
[mailto:redhat-install-list-bounces at redhat.com] On Behalf Of Jeff Kinz
Sent: Wednesday, February 15, 2006 7:16 PM
To: RedHat Install List
Subject: Re: Somewhat OT email addresses

On Thu, Feb 16, 2006 at 01:29:32PM +1100, Graeme Nichols wrote:
> Hello Folks,
> 
> I know this is somewhat OT but I was wondering if it is possible to 
> send an email with an address in the following format; username@[IP 
> address]

Yes, it works.  I've done it.  May not work for all MTA's.  Some may require
a domain name.


> I have been fiddling around because a person with whom I was writing 
> to has suddenly become unknown, possibly because of DNS failure, I'm 
> not sure, and the mail is returned undeliverable as the domain is unknown.
> They are having the same problem sending mail to me.
> 
> I did a ping on my ISP's SMTP mail server and while there was a 100% 
> failure rate on the packets, most probably due to some firewall 
> setting, I was given the IP address, in this case, 203.12.160.34
> 
> I sent a test email to name at 203.12.160.34 but it bounced with the 
> following error;
> 
> 553 5.3.5 203.12.160.34 config error: mail loops back to me (MX 
> problem?)
> 554 5.3.5 Local configuration error
> 
> Is it possible to do what I am trying and circumvent the DNS?
> 
> If SKP can help me I would appreciate it.
> 
> --
> 
> ----------------------------------------------------------------------
> Kind regards,
> 
> Graeme.
> ----------------------------------------------------------------------
> 
> Happiness is having a scratch for every itch.
> 		-- Ogden Nash
> 
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--
Jeff Kinz, Emergent Research, Hudson, MA.
speech recognition software may have been used to create this e-mail

"The greatest dangers to liberty lurk in insidious encroachment by men of
zeal, well-meaning but without understanding." - Brandeis

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madness. -- Eugene Ionesco

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