如何从交易所获取所有通讯组列表

Question

I am trying to grab all of the distribution lists from Exchange. I am doing the same thing with Active Directory, where I am pulling the emails. I am able to do that using:

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

DirectoryEntry entry = new DirectoryEntry("LDAP://my.domain");
DirectorySearcher dSearch = new DirectorySearcher(entry);
dSearch.Filter = "(objectClass=user)";
foreach (SearchResult sResultSet in dSearch.FindAll())
{
     if (sResultSet.Properties["mail"].Count > 0)
     {
         emailAddresses.Add(sResultSet.Properties["mail"][0].ToString());
     }              
}

What would be the best and most efficient way to grab the distribution lists from exchange?

Answer 1

If you are using O365, you just need to use the API to read groups in Office 365. Here is an example how to do this: https://dev.office.com/blogs/GroupsRESTAPI . You do not need to use LDAP for that. Here is another example on how to read groups in beta endpoint using graph api: http://graph.microsoft.io/docs/api-reference/beta/resources/group - Hope this helps.