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Question : Mail delivery has failed
Dear expert
We are using co-existing mail solution right now and getting some problem when sending mail to a correct address.
Note: mail1.company.com is exchange 2003, mail2.company.com is exchange 2010.
We got a mail return whenever we are trying to send this mail:
Delivery has failed to these recipients or groups:
[email protected]
A communication failure occurred during the delivery of this message. Please try resending the message later. If the problem continues, contact your helpdesk.
Diagnostic information for administrators:
Generating server: mail1.company.com (This is exchange 2003)
[email protected]
#< #5.5.0 smtp;550 RCPT TO:<
[email protected]
> User unknown> #SMTP#
Original message headers:
Received: from mail2.company.com ([192.168.1.12]) by
mail1.company.com with Microsoft SMTPSVC(6.0.3790.3959); Thu, 20 May
2010 12:51:59 +0200
Received: from mail2.company.com ([::1]) by mail2.company.com
([::1]) with mapi; Thu, 20 May 2010 12:51:59 +0200
From: =?iso-8859-1?Q?user1= <
[email protected]
>
Subject: =?iso-8859-1?Q?FW:=
Thread-Topic: =?iso-8859-1?Q?St==
Thread-Index: Acrt462FPl+kTgicSyGrqEFfyS
+IPgKI+3FA
Date: Thu, 20 May 2010 10:51:57 +0000
Message-ID: <B4561EA180D19D4DA9707CF6A
5B6BD9802C
3ED@mail2.
company.co
m>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
Content-Type: multipart/alternative;
boundary="_000_B4561EA180D
19D4DA9707
CF6A5B6BD9
802C3ED"
MIME-Version: 1.0
BCC:
Return-Path:
[email protected]
X-OriginalArrivalTime: 20 May 2010 10:51:59.0546 (UTC) FILETIME=[78EA41A0:01CAF80
A]
Any expert know what could be the problem? the mail address is correct. the mail address is edited because company policy.
Answer : Mail delivery has failed
Folow the snapshot in Exchange System Manager
Untitled.png
(52 KB)
(File Type Details)
Exchange Authentication
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