これは、GMAIL と VB.NET を使用して電子メールを送信するための私のコードです。
Try
Dim SmtpServer As New SmtpClient()
SmtpServer.Credentials = New Net.NetworkCredential("mygmailid@gmail.com", "mypassword")
SmtpServer.Port = 587
SmtpServer.Host = "smtp.gmail.com"
SmtpServer.EnableSsl = True
mail = New MailMessage()
mail.From = New MailAddress("mygmailid@gmail.com", "Asked for help", System.Text.Encoding.UTF8)
Mail.To.Add("sendtoemail@id")
Mail.Subject = "A help query has been raised"
mail.Body = frm_dashboard.user_data_fetch.Item(1, 0).Value.ToString + " " + ask_for_help.txt_message_ask_help.Text
SmtpServer.Send(Mail)
MessageBox.Show("Mail sent")
Catch ex As Exception
MsgBox(ex.ToString())
MessageBox.Show("Oops something went wrong.")
End Try
しかし、これは私にこのエラーを示しています:-