맛집도 좋고 개발도 좋고~

아래 코드 참조.
지메일 셋팅 하고, 파일 첨부해서 '비동기' 방식으로 보내기.
(주석처리된 send 는 동기 방식)
한글을 사용하기 위해 제목(subject), 내용(body) 의 인코딩을 UTF8로 셋팅해준다.

using System; using System.Windows.Forms; using System.Net.Mail; namespace EmailTestApplication { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { try { MailMessage mail = new MailMessage(); SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com"); //set the address mail.From = new MailAddress("your g-mail address"); mail.To.Add("target e-mail address"); //set the contents mail.Subject = "Subject Test Mail"; mail.Body = "This is for testing SMTP mail from GMAIL"; mail.BodyEncoding = System.Text.Encoding.UTF8; mail.SubjectEncoding = System.Text.Encoding.UTF8; //set attachment System.Net.Mail.Attachment attachment; attachment = new System.Net.Mail.Attachment("D:\\temp\\file.txt"); mail.Attachments.Add(attachment); //setting smtpServer SmtpServer.Port = 587; SmtpServer.Credentials = new System.Net.NetworkCredential("your_ID", "your_password"); SmtpServer.EnableSsl = true; //SmtpServer.Send(mail); // MessageBox.Show("mail Send"); //async send mail object userState = mail; SmtpServer.SendCompleted += new SendCompletedEventHandler(client_SendCompleted); SmtpServer.SendAsync(mail, userState); } catch (Exception ex) { MessageBox.Show(ex.ToString()); } } void client_SendCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e) { //Get the Original MailMessage object MailMessage mail = (MailMessage)e.UserState; //write out the subject string subject = mail.Subject; if (e.Error == null) { // Send succeeded string message = string.Format("Send Mail with subject [{0}]", subject); MessageBox.Show(message); } else if (e.Cancelled == true) { string message = string.Format("Send canceld for mail with subject [{0}]", subject); MessageBox.Show(message); } else { // log exception string message = string.Format("Send Mail Fail - Error: [{0}]", e.Error.ToString()); MessageBox.Show(message); } } } }