Email goes to spam instead of inbox

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C#

We have a domain name "www.mycloudcctv.com" at godaddy.com.
This application wants to send an email on our behalf using the email address “alerts@ mycloudcctv.com ". Following code snippet (ASP.NET) is being used to send the email from "alerts@ mycloudcctv.com ".the following code snippet send email but goes to spam or junk instead of inbox. i want to goes direct to inbox.

try
           {

               System.Net.Mail.MailMessage objMM = new System.Net.Mail.MailMessage();
               objMM.From = new MailAddress(from-email, displayName);
               objMM.To.Add(new MailAddress(to-email));
               objMM.Subject = subject;
               objMM.Body = message;
               objMM.IsBodyHtml = true;

               SmtpClient smtp = new SmtpClient(EMAIL_SERVER);
               smtp.Credentials = new NetworkCredential(from-email, "Password");
               smtp.Send(objMM);

           }
           catch (Exception)
           {
               throw;
           }

plz, help me