smtpclient

问题 I am using SmtpClient to send an email to multiple recipients. As employees leave the company, their email addresses become invalid. Since their email addresses remain in our database until deleted manually, trying to send an email to them causes our application to throw an exception during SmtpClient.Send(MailMessage) . However, in spite of the exception being thrown, it still sends the email. This is a problem because we want to handle this error by blocking the user's attempt to save the

问题 I want to Run Below code without NetworkCredential nc = new Net.NetworkCredential("USERNAME", "PASSWORD"). BY using Only Exchange Host (Server Name) And Port Im Getting Error For this code : Mailbox unavailable. The server response was: 5.7.1 Client does not have permissions to send as this sender protected void SendEmail(object sender, EventArgs e) { SmtpClient smtpClient = new SmtpClient("ExchangeServerName",25); MailMessage message = new MailMessage(); try { MailAddress fromAddress = new

问题 Sorry the title is a bit crappy, I couldn't quite word it properly. Edit: I should note this is a console c# app I've prototyped out a system that works like so (this is rough pseudo-codeish): var collection = grabfromdb(); foreach (item in collection) { SendAnEmail(); } SendAnEmail: SmtpClient mailClient = new SmtpClient; mailClient.SendCompleted += new SendCompletedEventHandler(SendComplete); mailClient.SendAsync('the mail message'); SendComplete: if (anyErrors) { errorHandling() } else {

问题 I'm sending MailMessages with an SmtpClient (being delivered successfully) using an Exchange Server but would like my sent emails to go to the Sent Folder of the email address I'm sending them from (not happening). using (var mailMessage = new MailMessage("fromaddress@blah.com", "toaddress@blah.com", "subject", "body")) { var smtpClient = new SmtpClient("SmtpHost") { EnableSsl = false, DeliveryMethod = SmtpDeliveryMethod.Network }; // Apply credentials smtpClient.Credentials = new

问题 Hello and thank you for taking the time to look help me with my problem. I have been working on a small webgl thing within Unity that will send the user an email after they have done some stuff. I got it all built and ready to go, however when I built it and went to test it I get the socketexception error, when sending the email. Here is the code I am using to send the email MailMessage mail = new MailMessage(); mail.From = new MailAddress(myEmail); mail.To.Add(userEmail.text); mail.Subject =

问题 I am trying to send an automated email using Outlook.com smtp support. However I am get the following exception: System.Net.Mail.SmtpException: Failure sending mail. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host" Exception while sending email. My code: public bool SendEmail(MailMessage msg) { try

问题 I need to validate the username and password set in an SmtpClient instance before sending mail. Using this code: SmtpClient client = new SmtpClient(host); client.Credentials = new NetworkCredential(username,password); client.UseDefaultCredentials = false; // Here I need to verify the credentials(i.e. username and password) client.Send(mail); How can I validate whether the user identified by the credentials is allowed to connect and send a mail? 回答1: There is no way. SmtpClient bascially can

问题 any one knows an objective-c smtp library for use in iphone app. I use skpsmtpmessage http://code.google.com/p/skpsmtpmessage/ but it sends message body as attachment when send mail to gmail. thanks. 回答1: Try to use https://github.com/MailCore/mailcore2. It is Asynchronous and support most of mail protocol. Look at the Sending Mail Example: MCOSMTPSession *smtpSession = [[MCOSMTPSession alloc] init]; smtpSession.hostname = @"smtp.gmail.com"; smtpSession.port = 465; smtpSession.username = @

问题 I'm using an Exchange 2007 pickup directory to send emails from my ASP.NET application with System.Net.Mail.SmtpClient . Thus I'm using SmtpClient.DeliveryMethod = SmtpDeliveryMethod.SpecifiedPickupDirectory . It sends emails fine, but then I noticed that BCC is not working at all. The file being placed in the pickup folder seems to have the right settings, but Exchange is ignoring the X-Receiver list. Here is a sample of the EML file being created: X-Sender: "Joe" <joe@example.com> X

问题 I am writing a C# class that needs to send SMTP emails. I found code in this SO question which gave me what I needed to send the email (SO Question) For convenience, here is the code I am modifying from an answer to the above question: using System.Net; using System.Net.Mail; var fromAddress = new MailAddress("from@gmail.com", "From Name"); var toAddress = new MailAddress("to@example.com", "To Name"); const string fromPassword = "fromPassword"; const string subject = "Subject"; const string