Recipient email servers looking for source domain entry??

[Barry Margolin]

In article <hWFw4.64399$0p1.1639009 at news4.giganews.com>,
Jim Picerno <jpicerno at speakeasy.org> wrote:
>I'm using Exchange 5.5 and I'm gettng the error messages I've listed below.
>Are these errors referring to a specific DNS entry or is it some other
>problem with DNS. If there is a specific DNS entry could someone provide an
>example?

It's complaining that there are no MX or A records for Source.com.  The
sender address has to be something that mail can be sent back to.

If you had shown us the real domains in your error messages we could tell
you more.

>Event Type: Warning
>Event Source: MSExchangeIMC
>Event Category: SMTP Interface Events
>Event ID: 4030
>Description:
>The following message could not be delivered to <Jane_Doe at Destination.com>
>Delivery will be retried later. The  destination server reported: 450
><John_Doe at Source.com>: Sender address rejected: Domain not found From:
><John_Doe at Source.com> Subject: ABC123
>
>Event Type: Warning
>Event Source: MSExchangeIMC
>Event Category: SMTP Interface Events
>Event ID: 4090
>Date:  3/5/2000
>Time:  4:12:52 PM
>Description:
>Mail could not be delivered to 123.456.789.10 (Destination.org). The
>destination server reported 451 <John_Doe at Source.com>... Sender domain must
>resolve. Delivery will be retried later.

-- 
Barry Margolin, barmar at bbnplanet.com
GTE Internetworking, Powered by BBN, Burlington, MA
*** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
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