在ASP.NET核心和DirectoryServices中，我是否可以从电子邮件地址而不是用户名获取用户身份？

using System.DirectoryServices;

DirectoryEntry directoryEntry = new DirectoryEntry("LDAP://yourdomain.com");

DirectorySearcher directorySearcher = new DirectorySearcher(directoryEntry);
directorySearcher.Filter = "(mail=emailAddress)";

SearchResult searchResult = directorySearcher.FindOne();
if (searchResult != null)
{
    // 获取用户身份信息
    string userName = searchResult.Properties["samaccountname"][0].ToString();
    // 其他操作...
}