Send Email Message with SMTP

by William Ryan

A common task in .NET is wanting to send someone a mail message.  Thanks to System.Web.Mail, it's a piece of case.

First, add the using directive:

using System.Web.Mail;

Next, declare an instance of the MailMessage class

MailMessage myMessage = new MailMessage(); Next, set whatever properties you want (I've included most of the more common ones): myMessage.To = this.EmailAddress; myMessage.From = Environment.UserName + "@knowdotnet.com"; myMessage.Priority = this.MessagePriority; myMessage.Subject = String.Format("Message from {0} at {1}", this.From, this.Company); StringBuilder sb = new StringBuilder(); sb.Append(To + ", you received a Message from " + From + " with " + this.Company +  "\r\n\r\n"); sb.Append("at " + MessageDate + " " + MessageTime + "\r\n\r\n"); sb.Append("Regarding : " + this.Regarding + "\r\n\r\n"); sb.Append("They : " + this.PhoneActions + "\r\n\r\n"); sb.Append("They can be reached at : " + this.Phone + "\r\n\r\n"); sb.Append("Their Message:  " + this.Message + "\r\n\r\n"); sb.Append("Initialed: " + Environment.UserName); myMessage.Body = sb.ToString();

Finally, call the SmtpMail.Send shared method, passing in your mail message:

try {     SmtpMail.Send(myMessage); } catch(System.Exception ex) {     Debug.Assert(false, ex.ToString()); }

There is also another Constructor which takes in multiple string arguments like so:

SmtpMail.Send(From, To, Subject, Body);

In the example above:

SmtpMail.Send(Environment.Username + "@knowdotnet.com",  this.EmailAddress, this.Subject, this.Message);

Where I had a class with EmailAddress, Subject and Message properties.

That's it!