我有以下代码可以使用Exchange EWS发送电子邮件。在提供错误的用户名和密码并返回401未经授权的错误之前,一切工作正常。我将发送包裹在catch语句中以处理错误。但是没有达到catch语句。
public void SendExchangeEmail(EmailModel model, ApplicationUser adminUser)
{
var service = new ExchangeService(ExchangeVersion.Exchange2013_SP1)
{
Credentials = new WebCredentials(adminUser.Email, adminUser.ExchangePassword),
TraceEnabled = true,
TraceFlags = TraceFlags.All,
Url = new Uri("MyExchangeUrl")
};
var email = new EmailMessage(service);
email.ToRecipients.Add(model.recipient);
email.Subject = model.Subject;
email.Body = new MessageBody(model.Body);
try
{
email.Send();
}
catch (ServiceResponseException ex)
{
// This catch block is not reached when the incorrect username and password are supplied.
}
}
捕获未授权错误的正确方法是什么。
答案 0 :(得分:2)
您的异常处理不正确。 “请求失败。远程服务器返回错误:(401)未经授权。”错误引发ServiceRequestException。将您的代码修改为:
try
{
email.Send();
}
catch (ServiceRequestException ex)
{
//Exception handling
}
答案 1 :(得分:0)
您需要与您的Exchange管理员联系,以允许服务帐户(AD帐户)获得在Outlook应用程序外部发送电子邮件的权限(我忘记了角色/权限的特定名称)。
然后修改您的代码以使用以下内容:
ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2013_SP1); service.Credentials = new System.Net.NetworkCredential(serviceAccount.UserName, serviceAccount.Password); service.ImpersonatedUserId = new ImpersonatedUserId(ConnectingIdType.SmtpAddress, userEmail); service.AutodiscoverUrl(userEmail, RedirectionUrlValidationCallback);
电子邮件用户的权限仅在Outlook应用程序中有效。如果在外部调用该命令,则会被阻止,因此需要您的Exchange管理员知道的权限。