Convert IMCEAX NDR to X500 Value with Reference Table

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“Deleted User/Re created user/Click on it to get the Custom Address“
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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

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

Add the X500 Address address which is converted.

Click Ok, Apply , OK,

Powershell Sample to Convert

$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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