[ExchangeList] Re: send connector issue

  • From: "James Chong" <jchong@xxxxxxxxxxxx>
  • To: <exchangelist@xxxxxxxxxxxxx>
  • Date: Thu, 17 Jan 2008 09:57:47 -0500

http://www.msexchange.org
-------------------------------------------------------Hmmm I think I've always 
used the smarthost IP rather than IP. Can't
seem to find any doc on smarthost resolution. By chance you're not doing
external DNS resolution ie. Use the external DNS lookup settings and
pointing to external manually configured DNS servers?


James Chong
Sr. Systems Engineer
Simplexity, LLC.
11130 Sunrise Valley Drive, Suite 300
Reston, VA 20191
O (703) 657-4612
C (703) 863-1483


-----Original Message-----
From: exchangelist-bounce@xxxxxxxxxxxxx
[mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Tom Kern
Sent: Thursday, January 17, 2008 9:00 AM
To: exchangelist@xxxxxxxxxxxxx
Subject: [ExchangeList] Re: send connector issue

http://www.msexchange.org
-------------------------------------------------------Here is what I
see-

I ran Netmon
the reason its failing is because the send connector is querying for
an MX record for the FQDN of the smarthost BUT my smarthost doesnt
have an MX record.

Kinda defeats one of the points of using a smarthost

why would it query for the mx record of a smarthost?

if that is true, i would call that a bug....

On Jan 17, 2008 8:39 AM, James Chong <jchong@xxxxxxxxxxxx> wrote:
> http://www.msexchange.org
> -------------------------------------------------------Does running
the mail flow troubleshooter give any more details?
>
> Is this a new connector or an existing one that broke?
>
>
>
>
> James Chong
> Sr. Systems Engineer
> Simplexity, LLC.
> 11130 Sunrise Valley Drive, Suite 300
> Reston, VA 20191
> O (703) 657-4612
> C (703) 863-1483
>
>
> -----Original Message-----
> From: exchangelist-bounce@xxxxxxxxxxxxx
> [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Tom Kern
> Sent: Thursday, January 17, 2008 12:42 AM
> To: ExchangeList
> Subject: [ExchangeList] send connector issue
>
> http://www.msexchange.org
> -------------------------------------------------------Using a
exchange
> 2k7sp1 Send connector to forward email to a smarthost.
> i have entered the FQDN of the smarthost in the connector.
>
> when i send email i get a "451 4.4.0 DNS query failed" in the queue
> but I can telnet on port 25 from the hub transport to that smarthost
> using the fqdn and nslookup from the HT resolves correctly as well.
>
> No auth is being used.
>
>
>
> any ideas?
>
>
> thanks guys
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