Create and send outlook email

Question

I have been roaming forums and not finding any answer to my question. all of the solution (and question) is about using Microsoft.Office.Interop.Outlook; for some reason I am not allowed to use any office.interop.

I even tried:

MailAddress fromAddress = new MailAddress("[email protected]"); System.Net.Mail.MailMessage message = new System.Net.Mail.MailMessage(); message.From = fromAddress; message.To.Add("[email protected]"); message.CC.Add("[email protected]"); message.Subject = "theSubject"; message.Body = "TheBody"; SmtpClient smtpClient = new SmtpClient("zzz.server.xxx"); smtpClient.Credentials = new NetworkCredential("[email protected]", "password"); smtpClient.Send(message);

the code fail to authenticate the credential, even after I hard-coded the password, but I feel that there must be a better way.

I found this eventually helpful stackoverflow.com/questions/6489397/… — Alina B.
– Alina B., Commented Mar 3, 2013 at 4:37
Is this winforms, web, WPF or what? Obviously its not VSTO yet you've tagged it Outlook, so what type of application do you need to send emails from? — Jeremy Thompson
– Jeremy Thompson, Commented Mar 3, 2013 at 5:04

Benjiman · Accepted Answer · 2013-03-03 05:11:51Z

There is a lot to be desired of your question. Can you post the response from the server or the error you are receiving?

Here are some observations and feedback that may help you Specify the port

SmtpClient smtpClient = new SmtpClient("zzz.server.xxx", PORTNUMBER);

Set some of the basic properties

smtpClient.Timeout = 10000; smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network; smtpClient.UseDefaultCredentials = false; //must be set prior to credentials smtpClient.Credentials = new NetworkCredential("username", "pass");

Set the message encoding

message.SubjectEncoding = System.Text.Encoding.UTF8; message.BodyEncoding = System.Text.Encoding.UTF8;

Send Asyncronously and use a callback to determine the result

//add callback smtpClient.SendCompleted += new SendCompletedEventHandler(SendCompletedCallback); //set token string userToken = "tokenString"; //send asynchronously smtpCient.SendAsync(message, userToken); public static void SendCompletedCallback(object sender, AsyncCompletedEventArgs e) { // Get the unique identifier for this asynchronous operation. String token = (string) e.UserState; if (e.Cancelled) { //do something if it was cancelled } if (e.Error != null) { MessageBox.Show( e.Error.ToString()); } else { MessageBox.Show("Message sent."); } }

Just to add, you may need to Enable SSL using the EnableSsl property on the SmtpClient. SmtpClient Class

Daniel Holder · Accepted Answer · 2013-03-03 05:18:40Z

Have you verified the credentials, including the format of the username through configuring the account in an alternative client, such as Outlook?

You might need:

smtpClient.Credentials = new NetworkCredential("sender", "password");

or

smtpClient.Credentials = new NetworkCredential("DOMAIN\sender", "password");

Kevin Anderson · Accepted Answer · 2013-03-03 05:30:59Z

Is your email server an Exchange Server? If so, you can use the Exchange Web Services (EWS) to send emails and save copies in the Sent Items folder. A simple example can be seen here:

Send Exchange Email

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