Databases
StackOverflow2013
Postsdbo
POCorrect method to search for AD user by email address from .NET
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POCorrect method to search for AD user by email address from .NET
    primarykey
    data
    text
    <p>I'm having some issues with code that is intended to find a user in Active Directory by searching on their email address. I have tried 2 methods but I'm sometimes finding that the FindOne() method will not return any results on some occasions. If I look up the user in the GAL in Outlook I see the SMTP email address listed.</p> <p>My end goal is to confirm that the user exists in AD. I only have the email address as search criteria, so no way to use first or last name.</p> <p>Method 1: Using mail property:</p> <pre><code>DirectorySearcher search = new DirectorySearcher(entry); search.Filter = "(mail=" + email + ")"; search.PropertiesToLoad.Add("mail"); SearchResult result = search.FindOne(); </code></pre> <p>Method 2: proxyAddresses property: </p> <pre><code>DirectorySearcher search = new DirectorySearcher(entry); search.Filter = "(proxyAddresses=SMTP:" + email + ")"; // I've also tried with =smtp: search.PropertiesToLoad.Add("mail"); SearchResult result = search.FindOne(); </code></pre> <p>I've tried changing the case of the email address input but it still does not return a result. Is there a problem here with case sensitivity? If so, what is the best way to resolve it?</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USTanzelax
    1. USBrian Lyttle
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POCorrect method to search for AD user by email address from .NET
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POCorrect method to search for AD user by email address from .NET
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POCorrect method to search for AD user by email address from .NET
      1. This table or related slice is empty.
      1. VTUpMod
    1. COI think I've found the problem. The DirectoryEntry.Path was scoped to a specific domain. I changed the code to use the Global Catalog and the search is working. I'll come back and update soon. Answers on mail vs. proxyAddresses is welcome if someone has anything to add.
      singulars
      1. POCorrect method to search for AD user by email address from .NET
      1. USBrian Lyttle
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload