通過主Smtp地址查找交換用戶

Question

我必須編寫一個小型C＃應用程序，它使用全局Outlook通訊簿從給定的電子郵件地址查找Exchange用戶。通過他的名字找到Exchange用戶很簡單，但我如何通過他的主SMTP地址找到他？遍歷整個AddressList不是一個選項，因爲它是巨大的（將近400k條目），這需要永遠。有更好更快的方法嗎？

public Outlook.ExchangeUser GetAddressBookEntry(string senderName, string senderAddress) 
    { 
     //Get Outlook address book 
     Outlook.AddressList addressList = olNamespace.AddressLists["Globale Adressliste"]; 
     Outlook.AddressEntries addressEntries = addressList.AddressEntries; 

     Outlook.ExchangeUser exUser = null; 


     //Find corresponding entry in the address book 
     //This always returns something even if the SenderName is not in the Address Book 
     if (senderName != null) 
     { 
      Outlook.AddressEntry addressEntry = addressEntries[senderName]; 
      exUser = addressEntry.GetExchangeUser(); 
     } 

     //Check if contact is correct (see above for reason) 
     if (exUser != null && ((exUser.Name == senderName) || (exUser.PrimarySmtpAddress == senderAddress))) 
     { 
      return exUser; 
     } 

     //this loop takes a few minutes, it is not an option 
     //not checking the address not implemented 
     Debug.WriteLine("Count: " + addressEntries.Count); 

     Stopwatch sw = new Stopwatch(); 
     sw.Start(); 
     for (int i = 1; i <= addressEntries.Count; i++) 
     { 
      Outlook.AddressEntry addressEntry = addressEntries[i]; 

      if (i % 1000 == 0) 
      { 
       Debug.WriteLine(i); 
      } 
     } 
     sw.Stop(); 
     Debug.WriteLine("Seconds: " + sw.Elapsed.TotalSeconds); 

     return null; 
    } 

Answer 1

調用Namespace.CreateRecipient，調用Recipient.Resolve，然後使用Recipient.AddressEntry屬性。