使用服务帐户的 C# 和 Exchange Web 服务 - 错误

Question

我正在尝试使用服务帐户访问“通知”电子邮件地址的收件箱。这个服务账号和我的账号有相同的访问权限，但是没有自己的邮箱，只是一个服务账号。当我使用我的帐户时，以下测试代码有效，但是当我使用服务帐户时，我收到以下错误：

当以没有邮箱的帐户发出请求时，您 必须为任何可区分的邮箱指定邮箱主 SMTP 地址 文件夹 ID。

此代码目前应该只显示收件箱中有多少封电子邮件的主题为“测试”。我已经尝试了该站点上许多帖子的建议答案，但没有一个有效。谢谢你的帮助。下面是代码：

ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2013_SP1);
service.Credentials = new WebCredentials("ServiceAccount", "Password");
service.AutodiscoverUrl("ScriptNotifications@domain.com", RedirectionUrlValidationCallback);
ItemView mView = new ItemView(10);
mView.OrderBy.Add(ItemSchema.DateTimeReceived, SortDirection.Descending);
string querystring = "subject:\"test\"";
Console.WriteLine("Total emails whos subject is 'test':");
FindItemsResults<Item> results = service.FindItems(new FolderId(WellKnownFolderName.Inbox, new Mailbox("ScriptNotifications@domain.com")), querystring, mView);
Console.WriteLine(results.Items.Count.ToString());

更新：

我想添加 Noonand 的代码，因为这给了我一个不同的错误。编辑以适应一个块而不是使用方法，这里是代码：

ImpersonatedUserId impersonatedUserId = new ImpersonatedUserId(ConnectingIdType.SmtpAddress, "smtp.mysmtpaddress.com");
ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2013_SP1);
service.Credentials = new NetworkCredential("ServiceAccount", "Password");
service.ImpersonatedUserId = impersonatedUserId;
service.AutodiscoverUrl("ScriptNotifications@domain.com", RedirectionUrlValidationCallback);
try
{
    AlternateIdBase response =
        service.ConvertId(new AlternateId(IdFormat.EwsId, "Placeholder", "ScriptNotifications@domain.com"), IdFormat.EwsId);


}
catch (ServiceResponseException)
{
    // Expected exception, see EWS documentation
    // Nonetheless, the credentials provided can authenticate successfully against this Exchange box

}
ItemView mView = new ItemView(10);
mView.OrderBy.Add(ItemSchema.DateTimeReceived, SortDirection.Descending);
string querystring = "subject:\"test\"";
Console.WriteLine("Total emails whos subject is 'test':");
FindItemsResults<Item> results = service.FindItems(new FolderId(WellKnownFolderName.Inbox, new Mailbox("ScriptNotifications@domain.com")), querystring, mView);
Console.WriteLine(results.Items.Count.ToString());

当我运行该代码时，我在“FindItemResults”行收到以下错误：

SMTP 地址没有与之关联的邮箱。

更新 2：

感谢 Noonand，我相信该错误是 Exchange Server 2013 本身的错误。链接见下：

https://support.microsoft.com/en-us/kb/3006861

我必须等到公司的变更流程完成后才能进行此更新，这可能需要很长时间，但我想将其发布出去，以便其他有相同问题的人可以看到并获得帮助.

Answer 1

这样的东西应该适合你。这是在记事本中输入的（请原谅任何拼写错误）而不是编译，因为它只是为了让您走上正确的道路。

public static ExchangeService ConnectToExchangeWithImpersonation(string userName, SecureString password, string impersonatedUserSmtpAddress, Uri serverUrl)
{
    ImpersonatedUserId impersonatedUserId =
      new ImpersonatedUserId(ConnectingIdType.SmtpAddress, impersonatedUserSmtpAddress);

    ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2010_SP2) // Change as appropriate
    {
        Credentials = new NetworkCredential(userName, password);
        ImpersonatedUserId = impersonatedUserId;
        Url = serverUrl;
    }

    // Connected, now authenticate
    try
    {
        AlternateIdBase response = 
            exchangeService.ConvertId(new AlternateId(IdFormat.EwsId, "Placeholder", userInformation.Username), IdFormat.EwsId);

    }
    catch (ServiceResponseException)
    {
        // Expected exception, see EWS documentation
        // Nonetheless, the credentials provided can authenticate successfully against this Exchange box
    }

    return service;
}