Enviar email

[lsantyago]

Aca te va un codigo que te puede ayudar, es para envio de dos tipos Exchange, o Pop3

saludos

protected void enviomail()
{
try
{
ListaClientesTableAdapters.lista_clientesTableAdap ter mails = new ListaClientesTableAdapters.lista_clientesTableAdap ter();
ListaClientes.lista_clientesDataTable dt = mails.GetDataBy(int.Parse(cblistas.SelectedValue.T oString()));
foreach (ListaClientes.lista_clientesRow drmail in dt.Rows)
{
if (ConfigurationManager.AppSettings["exchange"].ToString() == "1")
{
System.Net.Mail.MailAddressCollection correoFrom = new System.Net.Mail.MailAddressCollection();
correoFrom.Add(txtmail.Text.ToString());
System.Net.Mail.MailMessage MiCorreo = new System.Net.Mail.MailMessage(correoFrom.ToString(), drmail.cliente.ToString(), txtAsunto.Text.ToString(), "HTML");
System.Net.Mail.SmtpClient MailObj = new System.Net.Mail.SmtpClient();
MiCorreo.Subject = txtAsunto.Text.ToString();
MiCorreo.Body = txtMensaje.Text.ToString();
MiCorreo.IsBodyHtml = true;
if (FileAttach.HasFile == true)
{
System.Net.Mail.Attachment oAttch = new System.Net.Mail.Attachment(FileAttach.PostedFile.F ileName);
MiCorreo.Attachments.Add(oAttch);
}

MailObj.Host = ConfigurationManager.AppSettings["host"].ToString();
MailObj.Port = int.Parse(ConfigurationManager.AppSettings["port"].ToString());
string usuario = ConfigurationManager.AppSettings["userName"].ToString();
string password = ConfigurationManager.AppSettings["password"].ToString();
NetworkCredential credenciales = new NetworkCredential(usuario, password);
//MailObj.Credentials = credenciales;
MailObj.UseDefaultCredentials = false;
MailObj.Credentials = credenciales;
MailObj.Send(MiCorreo);
}
if (ConfigurationManager.AppSettings["exchange"].ToString() == "0")
{
MailMessage MiCorreoPop3 = new MailMessage();
MiCorreoPop3.From = txtmail.Text.ToString();
MiCorreoPop3.Subject = txtAsunto.Text.ToString();
MiCorreoPop3.BodyFormat = MailFormat.Html;
MiCorreoPop3.Body = txtMensaje.Text.ToString();
MiCorreoPop3.To = drmail.cliente.ToString();
string usuario = ConfigurationManager.AppSettings["userName"].ToString();
string password = ConfigurationManager.AppSettings["password"].ToString();
MiCorreoPop3.Fields["http://schemas.microsoft.com/cdo/configuration/smtpserver"] = ConfigurationManager.AppSettings["host"].ToString(); ;
MiCorreoPop3.Fields["http://schemas.microsoft.com/cdo/configuration/smtpserverport"] = ConfigurationManager.AppSettings["port"].ToString(); ;
MiCorreoPop3.Fields["http://schemas.microsoft.com/cdo/configuration/sendusing"] = 2;
MiCorreoPop3.Fields["http://schemas.microsoft.com/cdo/configuration/smtpauthenticate"] = 1;
MiCorreoPop3.Fields["http://schemas.microsoft.com/cdo/configuration/sendusername"] = usuario;
MiCorreoPop3.Fields["http://schemas.microsoft.com/cdo/configuration/sendpassword"] = password;
if (FileAttach.HasFile == true)
{
MailAttachment oAttch = new MailAttachment(FileAttach.PostedFile.FileName);
MiCorreoPop3.Attachments.Add(oAttch);
}
SmtpMail.SmtpServer = ConfigurationManager.AppSettings["host"].ToString();
SmtpMail.Send(MiCorreoPop3);
}
}
}
catch (Exception generalEx)
{
ClientScript.RegisterStartupScript(this.GetType(), "OhCrap", String.Format("alert('There was a general problem: {0}');", generalEx.Message.Replace("'", "\'")), true);
}
}