C#连接Exchange 发送邮件代码如下
////// exchange群发邮件 /// /// exchange用户名 [example: test] /// exchange用户密码 /// 发送人地址 [example: test@allbring.com] /// 收件人地址 /// 邮件域名 [example: mail.allbring.com] /// 邮件主题 /// 邮件内容 /// 是否为html /// 发送上传的路径 ////// 开发人员：ZJ public static bool SendExchangeEmails(string credentialUserName, string credentialUserPwd, string fromEmail, List recipientEmail, string domainName, string subjectName, string bodyVal, bool isHtml, string[] fileArray) { try { MailMessage message = new MailMessage(); MailAddress fromAddress = new MailAddress(fromEmail); foreach (string item in recipientEmail) { message.To.Add(item); } message.From = fromAddress; message.Subject = subjectName; message.Body = bodyVal; message.IsBodyHtml = isHtml; if (fileArray != null) { for (int i = 0; i < fileArray.Length; i++) { //为邮件创建文件附件 Attachment attr = new Attachment(fileArray[i], MediaTypeNames.Application.Octet); //添加邮件时间戳信息 ContentDisposition conDispositon = attr.ContentDisposition; conDispositon.CreationDate = System.IO.File.GetCreationTime(fileArray[i]);//文件的创建日期 conDispositon.ModificationDate = System.IO.File.GetLastWriteTime(fileArray[i]);//文件的修改日期 conDispositon.ReadDate = System.IO.File.GetLastAccessTime(fileArray[i]);//文件的读取日期 //给邮件添加附件 message.Attachments.Add(attr); } } SmtpClient smtpClient = new SmtpClient(); smtpClient.Timeout = 50000; smtpClient.Host = domainName; smtpClient.Port = 25; smtpClient.UseDefaultCredentials = false; smtpClient.Credentials = new System.Net.NetworkCredential(credentialUserName, credentialUserPwd); smtpClient.EnableSsl = true; smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network; smtpClient.Send(message); smtpClient.Dispose(); return true; } catch (Exception) { return false; } }
如果exchange服务器只做了证书，在发送邮件的机器上也要安装证书邮件才能发送出去。
参考地址：https://social.technet.microsoft.com/Forums/en-US/d37c7e8a-6d42-498a-bad4-5eb0ab7e9d40/connecting-to-exchange-server-using-c-to-send-an-email?forum=exchangesvrdevelopment
http://www.systemnetmail.com/faq/2.4.aspx