Question

I am getting the exception as

Mailbox name not allowed. The server response was: Sorry, your
envelope sender is in my badmailfrom list.

Here is the code to send the email

public void SendEmail()
    {
        try
        {
            string Smtp_Client = System.Configuration.ConfigurationManager.AppSettings["Smtp_Client"];
            string NewtwrkCredentials_Uname = System.Configuration.ConfigurationManager.AppSettings["NewtwrkCredentials_Uname"];
            string NewtwrkCredentials_P = System.Configuration.ConfigurationManager.AppSettings["NewtwrkCredentials_P"];

            //Declaration a list of attendees
            MailAddressCollection macCollection = new MailAddressCollection();
            //Add attendde. In this example, I send invite to only one
            macCollection.Add(new MailAddress("****@****.com"));
            //Create mail message
            MailMessage mmMessage = formMailMessage("Test", "Test", "***.***@gmail.com", macCollection);
            //Create smtp client
            SmtpClient smtp = new SmtpClient("smtpout.europe.secureserver.net", 25);
            //Configure your smtp client
            smtp.EnableSsl = false;
            smtp.Credentials = new NetworkCredential("****@*****.com", "****");
            //Send it
            smtp.Send(mmMessage);

        }
        catch (Exception er)
        {

        }

    }

    public static MailMessage formMailMessage(string strSubject, string strBodyHTML, string Email, MailAddressCollection macAttendeeList)
    {
        //Create an instance of mail message
        MailMessage mmMessage = new MailMessage();
        //  Set up the different mime types contained in the message
        System.Net.Mime.ContentType typeText = new System.Net.Mime.ContentType("text/plain");
        System.Net.Mime.ContentType typeHTML = new System.Net.Mime.ContentType("text/html");

        AlternateView viewHTML = AlternateView.CreateAlternateViewFromString(strBodyHTML, typeHTML);
        mmMessage.AlternateViews.Add(viewHTML);
        //Adress the message
        mmMessage.From = new MailAddress(Email);
        foreach (MailAddress attendee in macAttendeeList)
        {
            mmMessage.To.Add(attendee);
        }
        mmMessage.Subject = strSubject;
        return mmMessage;
    }

Can anyone help me with the code as to what am i doing wrong? i created a console application and used the same piece of code and it worked fine. the smtp server, network credentials are all proper.

Kindly Help

Answer 1

No idea what the issue was i used a different smtp server and the code worked.