CODEWITHSUNDEEP
c#.netactive-directory
pgb
pgb

Reputation: 25001

C# - Find all email addresses for an Active Directory user

I'm trying to get all the email addresses associated to a given AD user.

For the user I have the domain and the login name (ex. DOMAIN\UserName) and I the AD is storing the email addresses in:

  1. The mail attribute.
  2. In proxyAddresses attributes.

So far, I don't know what C# API to use to connect to the AD, and how to properly filter by the user to fetch all the email addresses. I'm using .NET 3.5.

Thank you.

Upvotes: 9

Views: 33652

Answers (2)

Donut
Donut

Reputation: 112795

Here's a possible solution using various classes in the System.DirectoryServices namespace.

string username = "username";
string domain = "domain";

List<string> emailAddresses = new List<string>();

PrincipalContext domainContext = new PrincipalContext(ContextType.Domain, domain);
UserPrincipal user = UserPrincipal.FindByIdentity(domainContext, username);

// Add the "mail" entry
emailAddresses.Add(user.EmailAddress);

// Add the "proxyaddresses" entries.
PropertyCollection properties = ((DirectoryEntry)user.GetUnderlyingObject()).Properties;
foreach (object property in properties["proxyaddresses"])
{
   emailAddresses.Add(property.ToString());
}

Upvotes: 34

JonH
JonH

Reputation: 33141

Have you looked at the DirectoryEntry class. You can pull properties from there given you have the LDAP string set up. The propery for mail is "mail" ironic aint it ?

Upvotes: 0

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