Mahesh_Bhosale - Professional Profile

using System;
using System.Web.UI;
using System.Net.Mail;

 protected void btnSend_Click(object sender, EventArgs e)
        {
            try
            {
                if (SendMail() == true)
                {
                    ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "", "alert('Mail send sucessfully.')", true);
                }
                else
                {
                    ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "", "alert('Sending Failed.')", true);
                }
            }
            catch (Exception ex)
            {
            }
        }

        private bool SendMail()
        {
            try
            {
                SmtpClient oSmtpClient = new SmtpClient("smtp.office365.com",587);
                oSmtpClient.EnableSsl = true;// EnableSsl to true so you can connect via TLS
                System.Net.NetworkCredential cred = new System.Net.NetworkCredential("youroffice365mail@mail.org", "Your Password");
                oSmtpClient.Credentials = cred;
                MailMessage oMailMessage = new MailMessage();
                oMailMessage.From = new MailAddress("youroffice365mail@mail.org","User Name");//User name optional
                oMailMessage.To.Add("recipientmail@mail.com");
                oMailMessage.Subject = "Subject";
                oMailMessage.Body = "Mail Body";
                oSmtpClient.Send(oMailMessage);
                return true;
            }
            catch (Exception ex)
            {
                return false;
            }
        }