Re: Problem sending to one domain

  • From: "Tony Anderson" <tandersn@xxxxxxxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Tue, 16 Mar 2004 10:49:05 -0800

I had a problem where I installed IPsec on my exchange server. Then, as a
result, my exchange server couldn't talk to other SMTP servers that were
behind certain types of firewalls. Messages were not delivered to those


----- Original Message ----- 
From: "seabass" <denisedorrance@xxxxxxxxxxx>
To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
Sent: Tuesday, March 16, 2004 10:51 AM
Subject: [exchangelist] Problem sending to one domain

> I'm having problems sending emails to one specific domain (multiple
> users sending emails and they are returned).  I have checked my Exchange
> server 5.5 and there are no blocked addresses in there besides the
> default local host.  I have also checked my firewall and do not see them
> blocked.  The error on return is as follows:
>  The recipient was unavailable to take delivery of the message
> The MTS-ID of the original message is: c=US;a= ;p=My
> Company;l=EXCHANGE-040315161041Z-44509  MSEXCH:IMS:My Company:My
> Company:EXCHANGE 3499 (000B09AA) Host unreachable
> Thanks!!
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