通过主Smtp地址查找Exchange用户 [英] Find Exchange User via Primary Smtp Address

问题描述

我必须编写一个小型C#App，该App正在使用Global Outlook通讯簿从给定的电子邮件地址中查找Exchange用户.通过他的名字找到Exchange用户很简单，但是如何通过他的主要smtp地址找到他呢?遍历整个AddressList并不是一个选择，因为它庞大(几乎400k条目)，这将永远花费.有没有更好，更快的方法?

I have to write a small C# App which is using the Global Outlook Address Book to find the Exchange User from a given E-Mail Address. Finding the Exchange User by his name is simple, but how do I find him by his primary smtp address? Iterating over the whole AddressList is not an option, since it is huge (almost 400k Entries) this takes forever. Is there a better and faster way?

    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;
    }

推荐答案

调用Namespace.CreateRecipient，调用Recipient.Resolve，然后使用Recipient.AddressEntry属性.

Call Namespace.CreateRecipient, call Recipient.Resolve, then use the Recipient.AddressEntry property.

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