Re: Unable to Relay

  • From: "Newhouse, Christina C." <CCN@xxxxxxxx>
  • To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
  • Date: Mon, 4 Feb 2002 15:50:28 -0500

No, ISA is running on a Windows 2K box and Exchange is on a Windows NT4 SP6
box.

-----Original Message-----
From: Gabriel Zabal [mailto:gabriel@xxxxxxxxxxx]
Sent: Monday, February 04, 2002 3:46 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: Unable to Relay


http://www.ISAserver.org


Are you running Ex and ISA on the same server ?

Gabriel Zabal
gabriel@xxxxxxxxxxx


----- Original Message -----
From: "Christina Newhouse" <ccn@xxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Monday, February 04, 2002 12:26 PM
Subject: [isalist] Unable to Relay


> http://www.ISAserver.org
>
>
> For the last two weeks, after we rebooted our Exchange 5.5 server, we were
> unable to receive inbound e-mail.  However, we could send emails and we
> had interoffice e-mail.  The NDR states the following:
>
> The following address had permanent fatal errors - (ccn@xxxxxxxx)
>
> ...while talking with mail.tpgl.com:
> >>>RCPT To:<ccn@xxxxxxxx>
> <<<550 Unable to relay for ccn@xxxxxxxx
> 550 <ccn@xxxxxxxx>...User unknown
>
> After I reboot the Exchange server, ISA server and stop and restart the
> IMS service and SMTP service on Exchange numerous times, we will suddenly
> start to get inbound e-mails again.  It's a mystery to me.
>
> Thanks for any advice or suggestions!
>
> Tina Newhouse
>
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