troubleshooting Question

Exchange NDR error: 550 5.1.1

Avatar of Dan
DanFlag for United States of America asked on
ExchangeActive DirectoryWindows Server 2012
13 Comments2 Solutions218 ViewsLast Modified:
I had a public folder that I deleted yesterday, I first disabled the email address on it,  and then deleted the folder.
I then created a mailbox, with the same email address.

Now when I try to email the new account, I get these errors.  Is there a manual way to update exchange, or what would I need to do to refresh exchange, or remove any of the old pointers to the public folder?

Delivery has failed to these recipients or groups:
The email address you entered couldn't be found. Please check the recipient's email address and try to resend the message.
If the problem continues, please contact your helpdesk.

Diagnostic information for administrators:
Generating server:
Remote Server returned '550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found'
Original message headers:
Received: from ( by ( with Microsoft SMTP Server (TLS) id
 15.0.1156.6; Tue, 14 Nov 2017 08:40:30 -0800
Received: from ([fe80::97d:771a:ed09:476]) by ([fe80::97d:771a:ed09:476%12]) with mapi id
 15.00.1156.000; Tue, 14 Nov 2017 08:40:30 -0800
Content-Type: application/ms-tnef; name="winmail.dat"
Content-Transfer-Encoding: binary
From: Dan Andries <>
To: DonorRelations <>
Subject: test
Thread-Topic: test
Thread-Index: AdNdZ0fAM8YWEoyAT0qN9JJQH0yK6A==
Date: Tue, 14 Nov 2017 08:40:30 -0800
Message-ID: <>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach: yes
X-MS-TNEF-Correlator: <>
MIME-Version: 1.0
X-MS-Exchange-Transport-FromEntityHeader: Hosted
X-Originating-IP: []
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