Powershell Scrip to validate email address against AD

Question

_{Friday, February 27, 2015 12:38 PM}

Hi

I need help to write a script to validate email address (not email address format) against AD. I have bunch of email addresses in a column on database out of which some are valid and some are not valid (that not valid ones are they moved out of company).

Thanks

Kalyan

Kalyan Akula

All replies (3)

_{Friday, February 27, 2015 12:54 PM ✅Answered | 1 vote}

Just search for the address

get-aduser -Filter "EmailAddress -like '[email protected]'"

If it returns null the address doesn't exist.

¯\(ツ)_/¯

_{Friday, February 27, 2015 1:02 PM ✅Answered | 1 vote}

If your running Exchange it will be much faster to use the Exchange cmdlets

Get-Recipient <email address> 

Email address is not an indexed property in AD, and not required to be unique by AD, so Get-ADUser will have to search all the users looking for the ones that have that email address.  Exchange requires it to be unique and maintains it's own database, and uses it as an index.

[string](0..33|%{[char][int](46+("686552495351636652556262185355647068516270555358646562655775 0645570").substring(($_*2),2))})-replace " "

_{Monday, March 9, 2015 7:41 AM}

Hi Kalyan,

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