Mail Problem

 Hello Everyone,
   I am sending mail when one clicks on Enquire button to Enquire about Products. The Problem is that (i) Mail goes to Junk folder rather then Inbox (ii) Mail body is coming in a line rather then in next line, though I had used <br/> tag. Here is the code:
try
        {           
                MailMessage msg = new MailMessage();               
                msg.To.Add("abc@hotmail.com");
                msg.From =new MailAddress(txtEMail.Text);      ...