Microsoft.Exchange 发邮件

1.使用EWS发送邮件，需要主机加入域。

2.测试代码。
//Microsoft.Exchange.WebServices.dll
ExchangeService service = new ExchangeService();

//ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2013_SP1);

// 获取身份验证, 能够尝试你的邮箱名, 域用户ID等
// user: 登录username，邮箱登录ID或者域登录ID
// password：你懂的
// domain：域，不是域名，域用户的的话就得填这个，选填
service.Credentials = new NetworkCredential("帐号", "密码", "domain");
service.TraceEnabled = true;
service.AutodiscoverUrl("发件箱"); // 这个是发件然的邮箱地址，完整的(xx@dd.com).

//service.Url=new Uri("https://domain/EWS/Exchange.asmx");
//service.AutodiscoverUrl("发件箱", (redirectionUrl) =>
//{
//return true;
//});

EmailMessage message = new EmailMessage(service);
message.Subject = "Email的主题";
message.Body = "Email的内容";
message.ToRecipients.Add("收件箱");
message.Save();

message.SendAndSaveCopy();// 发送