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Wednesday, December 7, 2022

Convert IMCEAX NDR to X500 Value with Reference Table

Issue Happens after PST import or Office 365 Group renaming primary smtp address in a hybrid environment

Delivery has failed to these recipients or groups:

“Deleted User/Re created user/Click on it to get the Custom Address
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: HSEXC0022.AZURE365PRO.COM

IMCEAEX-

_o=HOSTING_ou=Exchange+20Administrative+20Group+20+28FYDIBOHF23SPDLT+29_cn=Recipients_cn=6cc028b24cc44923a56cf0a89d4857ca-pradeep+40careexc@HOSTING.LOCAL

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


Original message headers:


Received: from HSEXC0022.AZURE365PRO.COM (10.129.150.20) by


HSEXC0022.AZURE365PRO.COM (10.129.150.21) with Microsoft SMTP Server (TLS) id


15.0.847.32; Sun, 12 Jul 2015 10:12:19 +0400


Received: from HSEXC0012.AZURE365PRO.COM ([fe80::425:f61f:d5c9:3fb7]) by


HSEXC0012.AZURE365PRO.COM ([fe80::425:f61f:d5c9:3fb7%15]) with mapi id


15.00.0847.030; Sun, 12 Jul 2015 10:12:20 +0400


Content-Type: application/ms-tnef; name=”winmail.dat”


Content-Transfer-Encoding: binary


Reference IMCEAX to X500 –


IMCEAEX-


_o=HOSTING_ou=Exchange+20Administrative+20Group+20+28FYDIBOHF23SPDLT+29_cn=Recipients_cn=d8d4ee95a3bc4778a40wbeb269c518dfb-Ramakrishna+20Redd@HOSTING.LOCAL

Converted Value –


X500:/o=HOSTING/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=d8d4ee95a3bc4778a40beb269c518dfb-Ramakrishna Redd

Reference X500 – VALUE
_ /
+20 Blank Space
+28 (
+29 )
@domain.com To be removed
+40 @
+2E .
+2C ,
+5F _
%3d =

Here is the scenario – I had to remove 200 Mail Contacts and get them created as Mailboxes in 1000 User Environment. As soon as i delete the contacts its going to throw me an IMCEAX error, To Overcome this situation i had to export all them in advance, Had the X500 addresses ready, and Added them to the mailboxes created.


via Powershell


To Export the CSV –


 
 Get-MailContact -ResultSize Unlimited -OrganizationalUnit "Azure365pro.com/Emps" | Select-Object Name,Alias,PrimarySmtpAddress,LegacyExchangeDN | Export-Csv C:\legacyDN.csv 
 

Format the CSV into below format using Excel-


Name,Alias,PrimarySmtpAddress,LegacyExchangeDN
Melissa Melora ,Melissa,melissa@Azure365pro.com,X500:/o=HOSTING/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=5a186ad20a2b4aaeb44258a723a95054-Melissa Melora


Import it


Import-csv c:\Scripts\legacyDN.csv | foreach { set-mailbox -identity $_.PrimarySmtpAddress -EmailAddresses @{Add= $_.legacyexchangeDN}} 

Name,Alias,PrimarySmtpAddress,LegacyExchangeDN
Melissa Melora ,Melissa,melissa@Azure365pro.com,X500:/o=HOSTING/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=5a186ad20a2b4aaeb44258a723a95054-Melissa Melora



To Add it via ADUC – Using Attribute Editor


Open Active Directory Users and Computers – View – Advanced Features


image

Add the X500 Address address which is converted.


image

Click Ok, Apply , OK,


Powershell Sample to Convert


$x = "enter IMCEAEX full value"

$x = $x -replace "IMCEAEX-_", "X500:/" -replace "\+20", " " -replace "\+28", "(" -replace "\+29", ")" -replace "_", "/" -replace "\+2E","." -replace '@.*'

 

$x

 

If you have this with an office 365 group – (In my case users on-prem with group writeback having this issue. So added below waited for group writeback to give out this value)

Set-UnifiedGroup -Identity "test@localhost" -EmailAddresses @{add="X500:/o=NT5/ou=00000000000000000000000000000000/cn=CCE74E2284B1CF4CADDDDDD14FFDF9"}
Satheshwaran Manoharan
Satheshwaran Manoharanhttps://www.azure365pro.com
Specialized in Microsoft Azure - Office 365 / Microsoft Exchange; conducted numerous projects worldwide in designing, supporting, and implementing messaging and virtualization infrastructure for medium-sized and large enterprises. Further, I am a Cloud Architect and Technical Advisor for various start-ups.

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4 COMMENTS

  1. Paste this into Powershell ISE. Manipulate for own use
    $x = Read-host -prompt ‘enter IMCEAEX full value’
    $x = $x -replace “IMCEAEX-_”, “X500:/” -replace “\+20″, ” ” -replace “\+28”, “(” -replace “\+29”, “)” -replace “_”, “/” -replace “\+2E”, “.” -replace ‘@.*’, ”;cls;Write-output $x

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