Custom attributes in Exchange

Posted on 2016-11-21
Last Modified: 2016-11-26
I need to create 3 custom attributes for all Exchange users.  (computer name, 2 yes/no attributes) .  What is the process (i.e. script) to get the PowerShell manage that?
Question by:Vidia Poleon
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Expert Comment

by:Jason Crawford
ID: 41896051
Simple one liner should do.  Here is a command that will set CustomAttribute1 to whatever you specify for all mailboxes:

Get-Mailbox | Set-Mailbox <identity> -CustomAttribute1 'enter text'

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LVL 68

Expert Comment

ID: 41896216
Where do you get the values for each custom attribute from? Should they be set up identically for all users, or come from a CSV file, or ...?

For testing, almost all changing cmdlets allow for a -WhatIf parameter switch which will prevent changes from being applied. Instead, basic validation of parameter syntax and allowed values is performed only, and then a debug message sent to the console telling something about the operation and object it would be applied to.

Author Comment

by:Vidia Poleon
ID: 41901041
CSV file. What is the Syntax.
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LVL 68

Expert Comment

ID: 41901806
So you want to match a name in the CSV file, and apply the changes as noted in the same CSV line to the three fixed attributes of that member? What if the member is not found, or those members not contained in the CSV file?

In general you would do this:
Import-CSV C:\Temp\EE\CustomAttribs.csv |
  % {
    Set-Mailbox -Identity $_.ID -CustomAttribute1 $_.Attr1 -CustomAttribute2 $_.Attr2 -CustomAttribute3 $_.Attr3 -ea Continue

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with a CSV file looking like so:

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The first line determines the column names used in our code, but are otherwise arbitrary (if changed accordingly in the code).
You can use the display name, mail address, AD account name (and other, less common forms) for ID.

Author Comment

by:Vidia Poleon
ID: 41902070
Thank you for the quick response. I am unprepared for what happens if a name is not found.
LVL 68

Accepted Solution

Qlemo earned 500 total points
ID: 41902163
The script as-is will just spit out an error message and continue with the next user if that happens.

Author Closing Comment

by:Vidia Poleon
ID: 41902397
Thank you sooo much.  I appreciate the help. Well done.

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