[ExchangeList] Re: 550 5.7.1 Unable to relay for user@example.org

  • From: Devin McBride <devin@xxxxxxxxxx>
  • To: <exchangelist@xxxxxxxxxxxxx>
  • Date: Tue, 02 May 2006 16:28:35 -0700

http://www.msexchange.org
-------------------------------------------------------Internal dns routing 
unless specified otherwise (I believe).

Devin


On 5/2/06 12:48 PM, "Danny" <nocmonkey@xxxxxxxxx> wrote:

> http://www.msexchange.org
> -------------------------------------------------------Exchange 2003 SP2. I
> must have missed the lesson, but is it default
> behaviour to not relay mail from the server itself or LAN clients?
> Refresh my memory on how exactly Outlook clients (Exchange configured)
> send email to the Internet through an Exchange server.
> 
> c:\telnet localhost 25
> 220 mx1.example.org Microsoft ESMTP MAIL Service, Version: 6.0.3790.1830 read
> y at  Tue, 2 May 2006 15:28:32 -0400
> helo
> 250 mx1.example.org Hello [127.0.0.1]
> mail from:support@xxxxxxxxxxx
> 250 2.1.0 support@xxxxxxxxxxxxxxxxxxxxx OK
> rcpt to:danny@xxxxxxxxxx
> 550 5.7.1 Unable to relay for danny@xxxxxxxxxx
> quit
> 221 2.0.0 mx1.example.org Service closing transmission channel
> 
> support@xxxxxxxxxxx = valid local sender
> danny@xxxxxxxxxx = valid external receipient
> 
> If this is the case (out of the box), how can you test sending email
> to a foreign/external domain from a telnet session or without a MUA.
> I tried adding the server IP. No luck.  No Connectors.
> 
> Thanks,
> 
> ...D
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