550 5.1.1 RESOLVER Error

We have an Exchange 2010 SP3 infrastructure. We synchronize our Active Directory with many other government agencies. All the external agencies mailboxes show up as mail-enabled contact. Were seeing lots of 550 5.1.1 RESOLVER.ADR.Ex.RecipNoFound errors when
our users try to send mail to any of the contacts. Our fix has been to create an x500 address for these contacts and then the mail flows correctly.
Each night when we sync directories, all the mail-enabled contacts are overwritten and we're back to square one. Do we need to specify that agencies sync a x500 address with all their contacts as well?
Orange County District Attorney

Hello,
The following article should explain the reason. (Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft.
Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.)
http://zahirshahblog.com/2012/03/06/gal-sync-issues-for-mail-enabled-contacts-legacyexchangedn-missing-from-contact-imceaex-_ont5_ou-the-e-mail-address-you-entered-couldnt-be-found-admodify-update-mail-contacts-for-legacyex-2/
If you have any feedback on our support, please click
here
Cara Chen
TechNet Community Support

Similar Messages

Remote Server returned '550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found'

Hi all,
having the following issue that started today,everything been working fine until now.
When Office 365 users send e-mail to some on premise users they get the following error in Return.
Remote
Server returned '550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found'
On premis users (Exchange 2013) can send to the same contact just fine.So for 365 users that failed we have tested the following:
Using OWA,says recepient cannot be found.
All 365 users fails to same recepients,for now a dosen People.
Address that fail,mailboxes are spread accross different databases.
Cannot see any error in event Viewer related to this.
Any tips?
thanks!
Please mark as helpful if you find my contribution useful or as an answer if it does answer your question. That will encourage me - and others - to take time out to help you. Thank you! Off2work

Hi Ed,
thanks for reply and sorry for late reply,been alot to do lately With lots if migrations and errors.
YEs you are correct that the problem is caused by useraccount was in wrong OU and was not sync to the "Cloud".
Move users Object to correct OU and all was working fine.Strange this is that it have worked before,so does it mean that if user is not in the OU defined to synced,it will be removed from the cloud?
Br
Ill put it as resolved :)
Please mark as helpful if you find my contribution useful or as an answer if it does answer your question. That will encourage me - and others - to take time out to help you. Thank you! Off2work

550 5.7.1 RESOLVER.RST.AuthRequired; authentication required

Following error i get when sending mail to SharePoint mail enabled library. It create contac with non ruted domain. Domain is not public. Let say that ending of domain is LOC. So it is not
registered public domain…
And it is A contact, not Distribution group. Let put it , that that name of the contact is : [email protected]
I have setup Hybrid. All Exchange server s are Exchange 2013 CU5.
To make it work, I have tried to send mail, to that library through share mailbox or transport rule…. Every time I send mail from outside organization or from mailbox, that is hosted in O365 I get following error :
[email protected] <- I did use   email of shared mailbox , but that is returned
Your message can't be delivered because delivery to this address is restricted.
Diagnostic information for administrators:
Generating server: MBX01. noreg.loc
[email protected]
Remote Server returned '550 5.7.1 RESOLVER.RST.AuthRequired; authentication required'
Massage tracking loge, gives me following error :
RunspaceId              : 9fd72017-0941-42f0-8625-b58b1c79b367
Timestamp               : 6/12/2014 3:30:03 PM
ClientIp                :
ClientHostname          : MBX01
ServerIp                :
ServerHostname          :
SourceContext           :
ConnectorId             :
Source                  : ROUTING
EventId                 : FAIL
InternalMessageId       : 20190641259111
MessageId               : <[email protected]ngelabs.com>
Recipients              : {[email protected]}
RecipientStatus         : {[{LRT=};{LED=550 5.7.1 RESOLVER.RST.AuthRequired; authentication required};{FQDN=};{IP=}]}
TotalBytes              : 10261
RecipientCount          : 1
RelatedRecipientAddress :
Reference               : {<91a7f625-60e6-4070-a834-b120d77d4c41@ MBX01.noreg.loc>}
MessageSubject          : test 1111
Sender                  : [email protected]
ReturnPath              : [email protected]
Directionality          : Incoming
TenantId                :
OriginalClientIp        :
MessageInfo             :
MessageLatency          :
MessageLatencyType      : None
EventData               : {[DeliveryPriority, Normal], [ExternalOrgIdNotSetReason, ]}
Additional Info :
Customer has internal domain whom FQDN is noreg.loc. They have SharePoint farm. Farm has several mail enabled document libraries.   Email enabled libraries has FQDN of sharepoint.noreg.loc. They have about
100 of those mail enabled libraries. When library is crated it create contact, that is
[email protected],
[email protected] , and so on...
Internal users can send mail to that SharePoint library, works. It has stopped working for those whose mailbox »user« is moved to Office 365.
Now i have a problem. Because domain noreg.loc and sharepoint.noreg.loc is publically non-rutable domain, i do not wont to change all emails addresses of library, I will or I`m trying to do workaround.
First detailed of contact :
[email protected]
External SMTP : [email protected]
Alternate email :
[email protected],
[email protected]
I can not use distribution group, and sync it to office 365. Because expansion of members in that distribution group, will happened in Office 365 Exchange server. That will end up with error non existing domain for
lsharepoint.noreg.loc.
So I have tried with shared mailbox, that has setup forward to contact
[email protected]. I know that shared mailbox, has pickup mail, because, I have forget to set it, that every one can send to these recipient. When that is setup, mail is received, and transferred to [email protected]
, where it failed with error authentication required. Server that   send error is Mailbox server “Exchange 2013”.
I will try to setup classical mailbox, with forward to contact, but that would use local licences, that I do not wont.
I need to setup default receive connector on MBX server to allow no-authenticated “server” to relay, which I thing is security problem.
I do not understand why would sending mail to contact, required authentication

Hello,
Please try to use telnet command to send message to sharepoint to check the result.
Please create a new receive connector, and then enable "anonymous users" on a new receive connector to check the result.
Cara Chen
TechNet Community Support

Sending to external address: 550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found

Hi. We are using now two systems of Exchange. 2010 SP3 on-premises as part of SBS 2011 and Exchange Online. Two yaers 2010 works good. But 2-3 month ago one user began to receive error when he send email from 2010 to Exchange Online:
550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found
IMCEAEX-_O=EXCHANGELABS_OU=EXCHANGE+20ADMINISTRATIVE+20GROUP+20+28FYDIBOHF23SPDLT+29_CN=RECIPIENTS_CN=6FB07FEC5205488CBDFDC30357EFDEF8-TOBIAS@domain.local
#550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ##
Ursprüngliche Nachrichtenköpfe:
Received: from MX.domain.local ([XXX.XXX.XXX.XXX]) by MX.domain.local
([XXX.XXX.XXX.XXX]) with mapi id 14.03.0174.001; Tue, 11 Mar 2014 10:16:10 +0100
Content-Type: application/ms-tnef; name="winmail.dat"
Content-Transfer-Encoding: binary
From: David David<[email protected]>
To: =?Windows-1252?Q?Tobias_Tobias_?= <[email protected]>
Subject: AW: radar bilder
Thread-Topic: radar bilder
Thread-Index: AQHPPGR6TwWhAAAOtEWIAnQvTY5AzprbnBRr
Date: Tue, 11 Mar 2014 10:16:10 +0100
Message-ID: <[email protected]>
References: <CF437C4B.22C52%[email protected]>
In-Reply-To: <CF437C4B.22C52%[email protected]>
Accept-Language: de-DE, en-US
Content-Language: de-DE
X-MS-Has-Attach:
X-MS-TNEF-Correlator: <[email protected]>
MIME-Version: 1.0
I have read Internet about this case. And this solutions help to us, but only for one month... But it comes again and again. I
have read information about X500 address, but these all cases involved
a local user. When error comes description is about wrong X500 for local user. Why my Exchange 2010 SP3 doesn't send email to external domain, but looking in local database? Of course this address absent in database, because it is
external address.
Can be this is due to the fact that the user stores more than 30,000 messages in one folder and OAB always crushed?
This problem has only one user, and only while he write to Exchange Online domain.
Thank you!

Hello,
Please try to use owa to send a message to exchange online user to check the result.
Because there are many messages, I recommend you set retention policy, and then apply it to the user's mailbox.
Cara Chen
TechNet Community Support

Smtp;550 5.1.1 RESOLVER.ADR.RecipNotFound; not found

hello All,
I am getting the above error when i send a mail from external domain. I have exchange server 2010 on and O365 account. From last 2 months i am not using O365 account and even active sync is also not working. And recently O365 subscription was over. So now
non -synced users are not getting mails from external domain. Please find the below complete error.
The email address you specified couldn't be found or is invalid. It may be due to a bad entry in your Outlook or Outlook Web App recipient AutoComplete cache. Use the steps below to delete the entry from the cache:
Click New mail.
In the To field start typing the recipient's name or email address until the recipient appears in the drop-down list.
Use the DOWN ARROW and UP ARROW keys to select the recipient, and then press the DELETE key.
Then resend your message – delete and retype the recipient’s name or e-mail address before sending it.
For more tips on how to resolve this issue see DSN code 5.1.1 in Exchange Online.
Diagnostic information for administrators:
Generating server: DM2PR08MB368.namprd08.prod.outlook.com
[email protected]
Remote Server returned '550 5.1.1 RESOLVER.ADR.RecipNotFound; not found'
Original message headers:
Received: from BLUPR08CA0072.namprd08.prod.outlook.com (10.141.200.52) by
DM2PR08MB368.namprd08.prod.outlook.com (10.141.55.154) with Microsoft SMTP
Server (TLS) id 15.0.1010.18; Wed, 20 Aug 2014 16:55:58 +0000
Received: from BN1AFFO11FD021.protection.gbl (2a01:111:f400:7c10::118) by
BLUPR08CA0072.outlook.office365.com (2a01:111:e400:88d::52) with Microsoft
SMTP Server (TLS) id 15.0.1010.18 via Frontend Transport; Wed, 20 Aug 2014
16:55:56 +0000
Received: from mail-vc0-f171.google.com (209.85.220.171) by
BN1AFFO11FD021.mail.protection.outlook.com (10.58.52.81) with Microsoft SMTP
Server (TLS) id 15.0.1010.11 via Frontend Transport; Wed, 20 Aug 2014
16:55:56 +0000
Received: by mail-vc0-f171.google.com with SMTP id hq11so9516889vcb.30
for <[email protected]>; Wed, 20 Aug 2014 09:55:55 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=gmail.com; s=20120113;
h=mime-version:date:message-id:subject:from:to:content-type;
bh=UIg592euC1okrJydwvvU1ssSy4p+p3l+Nh+vpxrcn/Y=;
b=yhVCdHhs616U6+U4K7UqoQwm+eUrFgIJMKqmEUzREUgdgcgFtoM9+5MABnFeEjW7Cz
RT7vVTlH+v7nH/iW+nntxCRi4I3cqLUcAY8AgM5kGVoGBURCqo66dVbxWghB0HMDiZ7D
1AMDv1gez/PG8pmOpSVtkg1xmp0a/19vlPcqJ5ZRBlU/HdAuEYRp9M8ZBZLXgYF9RfDg
PphDqDLqDZ+Y7yNVIbAoC3gHA9kqfqAgWp3HOqRWb5TcRWI7sb9pj5ifYPQBVDJ6ozAS
jGfhzvxWHnbBPzVKqcCmkgrUVcSX8cUCrZqBjSk6c616nHSjVy6fRHnPdyIJ0Nzd6cnk
FR5Q==
MIME-Version: 1.0
X-Received: by 10.52.136.196 with SMTP id qc4mr15358922vdb.22.1408553755439;
Wed, 20 Aug 2014 09:55:55 -0700 (PDT)
Received: by 10.52.178.168 with HTTP; Wed, 20 Aug 2014 09:55:55 -0700 (PDT)
Date: Wed, 20 Aug 2014 22:25:55 +0530
Message-ID: <CA+GyOUV7n1V35=GRmzciyuocnAFngUN1Kba0XUbbT2QjEUb4Cg@mail.gmail.com>
Subject:
From: sai siva kumar <[email protected]>
To: <[email protected]>
Content-Type: multipart/alternative; boundary="bcaec51b12bd3d78fb0501127a3a"
Return-Path: [email protected]
X-EOPAttributedMessage: 0
X-Forefront-Antispam-Report: CIP:209.85.220.171;CTRY:US;IPV:NLI;EFV:NLI;
X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;UriScan:;
Final-Recipient: rfc822;[email protected]
Action: failed
Status: 5.1.1
Diagnostic-Code: smtp;550 5.1.1 RESOLVER.ADR.RecipNotFound; not found
Thanks

Hi,
Have you tried deleting the bad entry in your Outlook or Outlook Web App recipient AutoComplete cache as the error message suggested? If not, please have a try on it.
In addition, this issue may also occur if the on-premises mail-enabled user who represents the moved mailbox isn't stamped correctly with the target address. The Exchange server generates an NDR message because the on-premises Active Directory Domain Services
(AD DS) can't locate the user in order to route the mail correctly. To resolve it, please refer to this KB article:
http://support.microsoft.com/kb/2685437
Also have a look at the following article regarding 5.1.1 error:
http://technet.microsoft.com/en-us/library/dn479208(v=exchg.150).aspx
Since this forum is for questions and feedback related to Office Client side issue, you can also post a question in Exchange Online forum for further assistance:
http://social.technet.microsoft.com/Forums/msonline/en-US/home?forum=onlineservicesexchange
Thank you for your understanding.
Best Regards,
Steve Fan
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs.

How can I resolve error code -54 in iTunes? I am using the latest iTunes. No new updates are available.

How can I resolve error code -54 in iTunes? I am using the latest iTunes. No new updates are available. I'm using iTunes 11.3 on a MacBook Pro, OS X 10.6.8. I can't save my library in iTunes, the message just keeps popping up.

From an OS9 reference, error -54 is a software lock on a file or a permissions error. (Although there is no formal list of OSX error code some of the old codes still apply to OSX .)
First, try simply restarting your computer.
Try quitting iTunes, then deleting the .xml (not .itl !) version of the library file in the iTunes folder (iTunes will generate a new one).
iTunes Library cannot be saved (Error -54) - https://discussions.apple.com/thread/1912814 - various things to try.
Unknown error (-54) while syncing ipod - https://discussions.apple.com/thread/1082953 - problem was locked files
Why does iTunes keep showing a -54 error when I sync my iPad? - https://discussions.apple.com/thread/3727114
Error -54 possibly related to Touch Copy - https://discussions.apple.com/thread/3727114 - cleared by deleting preferences on iPad.
iTunes: Missing folder or incorrect permissions may prevent authorization - http://support.apple.com/kb/ts1277
Troubleshooting permissions issues in Mac OS X - http://support.apple.com/kb/HT2963

How to resolve Error "Adobe Acrobat (AcroExch.App rc=-2147221005) could not be loaded"

How to resolve Error "Adobe Acrobat (AcroExch.App rc=-2147221005) could not be loaded"

What is your operating system? Reader version?
You get this error when doing what?

550 5.1.1 RESOLVER.ADR.RecipNotFound; not found

Exchange 2013 to Office 365
Delivery has failed to these recipients or groups:
[email protected]<mailto:[email protected]>
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, p=
lease contact your helpdesk.
Diagnostic information for administrators:
Generating server: EX-01.asianpaintsbd.com
[email protected]
Remote Server returned '550 5.1.1 RESOLVER.ADR.RecipNotFound; not found'
Original message headers:
Received: from EX-01.asianpaintsbd.com (192.168.0.8) by
EX-01.asianpaintsbd.com (192.168.0.8) with Microsoft SMTP Server (TLS) id
15.0.620.29; Sat, 1 Mar 2014 12:43:43 +0600
Received: from mailgate.asianpaints.com (192.168.0.254) by
EX-01.asianpaintsbd.com (192.168.0.8) with Microsoft SMTP Server id
15.0.620.29 via Frontend Transport; Sat, 1 Mar 2014 12:43:43 +0600
Received: from appolicy.asianpaints.com (appolicy.asianpaints.com
[172.25.30.13])        by mailgate.asianpaints.com (Postfix) with ESMTP id
6BC55201D3     for <[email protected]>; Sat, 1 Mar 2014 12=
:17:23
+0530 (IST)
Received: from mail pickup service by appolicy.asianpaints.com with Microso=
ft
SMTPSVC;        Sat, 1 Mar 2014 12:13:13 +0530
thread-index: Ac81GYSiNf8cxYe8ThegGiLPANUKMQ=3D=3D
Content-Transfer-Encoding: 7bit
Content-Class: urn:content-classes:message
Importance: normal
Priority: normal
Received: from cmail.asianpaints.com ([192.168.40.3]) by
appolicy.asianpaints.com with Microsoft SMTPSVC(6.0.3790.3959); Sat, 1 Mar
2014 12:13:13 +0530
Received: from ibu.asianpaints.com (ibu.asianpaints.com [192.168.40.2]) by
cmail.asianpaints.com (Postfix) with ESMTP id 261C919E42 for
<[email protected]>; Sat, 1 Mar 2014 12:13:13 +0530 (IST)
Received: from apbl17 (unknown [116.68.197.114]) by ibu.asianpaints.com
(Postfix) with SMTP id DD14814D7FD; Sat, 1 Mar 2014 12:13:09 +0530 (IST)
Message-ID: <36F973864DEF41E985442FF4DABA2B2D@apbl17>
From: "Md. Mahmudul Hasan" <[email protected]>
To: Bhabotosh Mukharjee <[email protected]>, "'Md.
Salehuddin'" <[email protected]>, 'mridul kumar mazumder'
        <[email protected]>
CC: 'Anjan Sir' <[email protected]>, 'Saifur rahman Rahman'
        <[email protected]>, 'Mohammad Ullah Khan'
        <[email protected]>, 'FARUQUE-UL ISLAM Boss'
        <[email protected]>, <[email protected]=
om>,
        ''Aroop Chatterjee'' <[email protected]>,
        <[email protected]>, ''Mohammad Fuad Khan''
        <[email protected]>, <[email protected]>
References: <008401cf3505$2ac16620$6a80a8c0@Wearhouse>
<[email protected]>
Subject: Re: To Start Dispatch oparation To Demra Depot.
Date: Sat, 1 Mar 2014 12:43:27 +0600
MIME-Version: 1.0
Content-Type: multipart/alternative;
        boundary=3D"----=3D_NextPart_000_009B_01CF354B.D7F8CD60"
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2900.5931
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.3959
X-OriginalArrivalTime: 01 Mar 2014 06:43:13.0208 (UTC) FILETIME=3D[84989380=
:01CF3519]
Return-Path: [email protected]
Md. Ramin Hossain

Hi,
According to your description, I found that delivery failed when sent email from Exchange 2013 to Office 365. Following is my understanding, please correct me if there is any misunderstanding.
1. The sender Md. Mahmudul Hasan's mailbox holding in Exchange 2013 server.
2. The recipients' (in "To" and "Cc" field) mailboxes holding in Office 365.
3. When the sender Md send email to the recipients, delivery failed and got the NDR "Remote Server returned '550 5.1.1 RESOLVER.ADR.RecipNotFound; not found'".
If it is the case, please verify the recipients' email addresses.
If the recipients are all moved from Exchange 2013 to Office 365, this issue may occur if the on-premises mail-enabled user who represents the moved mailbox isn't stamped correctly with the target address.
The Exchange server generates an NDR message because the on-premises Active Directory Domain Services (AD DS) can't locate the user in order to route the mail correctly.
More details in the following KB:
"Delivery has failed" and "550 5.1.1 RESOLVER.ADR.RecipNotFound" NDR after a mailbox is moved to Office 365
http://support.microsoft.com/kb/2685437/en-us
Hope it is helpful
Thanks
Mavis
If you have feedback for TechNet Subscriber Support, contact
[email protected]
Mavis Huang
TechNet Community Support

Exchange 2013 - Outlook 2010 - 550 5.1.0 RESOLVER.ADR.InvalidInSmtp; encapsulated INVALID address inside an SMTP address

Hello,
I have issue when sending email to some addresses. Server respond with:
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Any suggestion, how to resolve issue?
Thx.

Hi Tomas,
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Please try to run Outlook under safe mode to avoid add-ins and AVs.
If there is any 3rd party add-ins, please try to disable them for testing.
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Mavis Huang
TechNet Community Support

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You will need to look elsewhere.

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