I tried to send mail from my asp.net web application.
I want to send my application password to the user mail id, for that I took the password from datatabase using getdetailss function.
btn4getPwd is the button calling the mailing function.
txtusername.Text is the text box containing sending mail address. All values are receiving correctly, no error occur but it's not working ..!
protected void btn4getPwd_Click(object sender, EventArgs e)
{
if (txtusername.Text.Trim() != "")
{
em.username = txtusername.Text.Trim();
DataTable forget = em.getdetailss(10);
string passwd = (forget.Rows[0]["PassCode"].ToString());
try
{
string Subject = "Your NLS Password";
string Body = passwd;
string ToEmail = txtusername.Text.Trim();
string SMTPUser = "mymail#gmail.com", SMTPPassword = "pswd";
MailMessage mail = new MailMessage();
mail.From = new MailAddress(SMTPUser, "AspnetO");
mail.To.Add(ToEmail);
mail.Body = Body;
mail.IsBodyHtml = true;
mail.Priority = MailPriority.Normal;
SmtpClient smtp = new SmtpClient();
smtp.Host = "smtp.gmail.com";
smtp.Port = 25;
smtp.Credentials = new System.Net.NetworkCredential(SMTPUser, SMTPPassword);
smtp.EnableSsl = true;
smtp.Send(mail);
Response.Write("<script language=javascript>alert('Mail send...!! ')</script>");
}
catch (SmtpException ex)
{
lbl4get.Text = "SmtpException ";
}
catch (Exception ex)
{
lbl4get.Text = "Exception";
}
}
else { Response.Write("<script language=javascript>alert('Invalid USERNAME...!! ')</script>"); }
}
smtp.Port = 25; is default port but for as you are sending over SSL use port 587 or 465 (nonstandard, but sometimes used for legacy reasons). Assume NetworkCredential are correct.
Related
I have created a Windows application which is used to send emails. i have given credentials. i turned on google/settings/lesssecure apps. Eventhough its not sending. Its showing the error The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required here is my code.
MailMessage message = new MailMessage();
message.From = new MailAddress("Selvacsebe23#gmail.com");
string[] mailaddress = new string[count];
int i;
if (textSubject.Text != string.Empty)
{
message.Subject = textSubject.Text;
if (textBody.Text != string.Empty)
{
message.To="Selvakesavan#gmail.com"
message.IsBodyHtml = true;
string tmpBody = "Hello " + "," + "<br/> <br/>" + textBody.Text + "<br/> <br/>" + "Thanks and Regardds";
message.Body = tmpBody;
SmtpClient client = new SmtpClient();
client.UseDefaultCredentials = true;
client.Host = "smtp.gmail.com";
client.Port = 587;
client.UseDefaultCredentials = false;
client.Credentials = new NetworkCredential("selvacsebe23#gmail.com", "mypassword");
message.Priority = MailPriority.High;
client.EnableSsl = true;
client.Send(message);
MessageBox.Show("Mail has sent successfully !!!", "Success !");
}
else
{
MessageBox.Show("Please Enter Body of the Message !");
}
}
else
{
MessageBox.Show("Please Enter Subject !");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Failure !");
log.Fatal(ex.Message);
}
}
If you turn on 2-step-verification, then you need to login using app-specific-password. You can create it here:
https://support.google.com/accounts/answer/185833?hl=en. If you use your normal password, then you will get exception : 5.5.1 Authentication Required. You don't need lots of code, this code is enough to send email without attachment:
const string from = "user1#gmail.com";
const string to = "user2#yahoo.com";
const string subject = "This is subject";
const string body = "This is body";
const string appSpecificPassword = "akdfkajsdhklakdfh";
var mailMessage = new MailMessage(from, to, subject, body);
using (var smtpClient = new SmtpClient("smtp.gmail.com", 587))
{
smtpClient.EnableSsl = true;
smtpClient.Credentials = new NetworkCredential(from, appSpecificPassword);
smtpClient.Send(mailMessage);
}
email fail to send when adding attachment, else it's successful
protected void Button1_Click(object sender, EventArgs e)
{
string temp = Session["captcha"].ToString();
if (temp == txtCaptcha.Text)
{
var mail = new System.Net.Mail.MailMessage();
mail.To.Add(#"my mail");
mail.From = new MailAddress("another email", "it's name",
System.Text.Encoding.UTF8);
mail.Subject = "my subject";
mail.SubjectEncoding = System.Text.Encoding.UTF8;
mail.Body = this.txtDescription.Text.Replace("\n", "<br>");
mail.BodyEncoding = System.Text.Encoding.UTF8;
mail.IsBodyHtml = true;
mail.Priority = System.Net.Mail.MailPriority.High;
var client = new SmtpClient();
client.UseDefaultCredentials = false;
client.Credentials = new System.Net.NetworkCredential("mail", "password");
client.Port = 587;
client.Host = "smtp.gmail.com";
client.EnableSsl = true;
client.DeliveryMethod = SmtpDeliveryMethod.Network;
try
{
if (this.fiUpload1.HasFile)
{
this.fiUpload1.SaveAs(Server.MapPath("MyAttach/" + fiUpload1.FileName));
mail.Attachments.Add(new System.Net.Mail.Attachment(Server.MapPath("MyAttach/" + fiUpload1.FileName)));
}
client.Send(mail);
Page.RegisterStartupScript("UserMsg", "<script>alert('Successfully Send...');</script>");
}
catch (Exception ex)
{
Exception ex2 = ex;
string errorMessage = string.Empty;
while (ex2 != null)
{
errorMessage += ex2.ToString();
ex2 = ex2.InnerException;
}
Page.RegisterStartupScript("UserMsg", "<script>alert('Sending Failed...');</script>");
}
}
else
{
Response.Write("Invalid Captcha, try again");
FillCapctha();
}
}
so what am i doing wrong, also should i save the files to my server first or could i just attach it from the client's ?
thanks and have a wonderful day
The following is my coding for sending email with my smtp server. but it throws an smtpexception as failure to sent .
I am using windows webserver for my website.
protected void btnSubmit_Click(object sender, EventArgs e)
{
try
{
MailMessage Msg = new MailMessage();
// Sender e-mail address.
Msg.From = new MailAddress(txtEmail.Text);
// Recipient e-mail address.
Msg.To.Add("info#dhuvara.com");
Msg.Subject = txtSubject.Text;
Msg.Body = txtMessage.Text;
Msg.IsBodyHtml = true;
// your remote SMTP server IP.
SmtpClient smtp = new SmtpClient();
smtp.Host = "mail.dhuvara.com";
smtp.Port = 25;
Msg.Priority = MailPriority.Normal;
smtp.Credentials = new System.Net.NetworkCredential("info#dhuvara.com", "SolaiMail");
smtp.EnableSsl = true;
smtp.Send(Msg);
//Msg = null;
lbltxt.Text = "Thanks for Contact us";
// Clear the textbox valuess
txtName.Text = "";
txtSubject.Text = "";
txtMessage.Text = "";
txtEmail.Text = "";
}
catch (Exception ex)
{
Console.WriteLine("{0} Exception caught.", ex);
}
}
You need to add smtp.UseDefaultCredentials = false;
It needs to be before you set the credentials.
Try to set EnableSSL = false;
It might be the problem - i've run into this problem before.
I doubt that mail.dhuvara.com is the right host to connect to.
DNS lookup for this host tells me, that it is a CNAME for go.domains.live.com and go.domains.live.com is a CNAME for domains.live.com, so I assume that you are using windows live to host your domain. Maybe you should try smtp.live.com as the mail server instead.
for sending email i set server name smtp.mail.yahoo.com and port is 465 i trying to send email but failed to send email
what is the correct servername and smtp port to send email using yahoo
what other configuration i needed to set ?
my code is here :
System.Net.Mail.MailMessage message = new System.Net.Mail.MailMessage();
message.To.Add(address);
message.Subject = subject;
message.From = new System.Net.Mail.MailAddress(from);
message.Body = body;
message.Bcc.Add(bcc);
message.CC.Add(cc);
System.Net.Mail.SmtpClient smtp = new System.Net.Mail.SmtpClient("smtp.mail.yahoo.com");
smtp.Credentials = new System.Net.NetworkCredential(emailid,password);
smtp.Port = 465;
smtp.EnableSsl = true;
smtp.Send(message);
I just tried the code and I think the yahoo mail server does not use SSL, because if you comment out
//smtp.Port = 465;
//smtp.EnableSsl = true;
it works.
I am not confirm about your smtp server settings these are working fine for me..
replace your smtp server settings and have idea from this code snippet.
some of the smtp server standart settings are here:
http://www.emailaddressmanager.com/tips/mail-settings.html
//Send mail using Yahoo id
protected void Button2_Click(object sender, EventArgs e)
{
String frmyahoo = "fromid#yahoo.com"; //Replace your yahoo mail id
String frmpwd = "fromidpwd"; //Replace your yahoo mail pwd
String toId = txtTo.Text;
String ccId = txtCc.Text;
String bccId = txtBcc.Text;
String msgsubject = txtSubject.Text;
String mailContent = txtContent.Text;
try
{
MailMessage msg = new MailMessage();
msg.To.Add(toId);
MailAddress frmAdd = new MailAddress(frmyahoo);
msg.From = frmAdd;
//Check user enter CC address or not
if (ccId != "")
{
msg.CC.Add(ccId);
}
//Check user enter BCC address or not
if (bccId != "")
{
msg.Bcc.Add(bccId);
}
msg.Subject = msgsubject;
//Check for attachment is there
if (FileUpload1.HasFile)
{
msg.Attachments.Add(new Attachment(FileUpload1.PostedFile.InputStream, FileUpload1.FileName));
}
msg.IsBodyHtml = true;
msg.Body = mailContent;
SmtpClient mailClient = new SmtpClient("smtp.mail.yahoo.com", 25);
NetworkCredential NetCrd = new NetworkCredential(frmyahoo, frmpwd);
mailClient.UseDefaultCredentials = false;
mailClient.Credentials = NetCrd;
mailClient.EnableSsl = false;
mailClient.DeliveryMethod = SmtpDeliveryMethod.Network;
mailClient.Send(msg);
clear();
Label1.Text = "Mail Sent Successfully";
}
catch (Exception ex)
{
Label1.Text = "Unable to send Mail Please try again later";
}
}
I can't send a email message using gmail settings. i already tried client.Host ="localhost" it's working but not in client.Host ="smtp.gmail.com".. Please help me guys.. I need use client.Host ="smtp.gmail.com".. thanks
here's my C# code:
string from = "aevalencia119#gmail.com"; //Replace this with your own correct Gmail Address
string to = "aevalencia191#gmail.com"; //Replace this with the Email Address to whom you want to send the mail
System.Net.Mail.MailMessage mail = new System.Net.Mail.MailMessage();
mail.To.Add(to); mail.From = new
MailAddress(from, "One Ghost" ,System.Text.Encoding.UTF8);
mail.Subject = "This is a test mail" ;
mail.SubjectEncoding = System.Text.Encoding.UTF8; mail.Body = "This is Email Body Text";
mail.BodyEncoding = System.Text.Encoding.UTF8;
mail.IsBodyHtml = true ; mail.Priority = MailPriority.High;
SmtpClient client = new SmtpClient(); //Add the Creddentials- use your own email id and password
client.Credentials = new System.Net.NetworkCredential(from, "iseedeadpoeple");
client.Port = 587; // Gmail works on this port client.Host ="smtp.gmail.com";
client.EnableSsl = true; //Gmail works on Server Secured Layer
try
{
client.Send(mail);
}
catch (Exception ex)
{
Exception ex2 = ex;
string errorMessage = string.Empty;
while (ex2 != null)
{
errorMessage += ex2.ToString();
ex2 = ex2.InnerException;
} HttpContext.Current.Response.Write(errorMessage
);
} // end try
here's the error:
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required.
Much thanks guys!
You need to get and send mail to GMail by using SSL secutiry certificate
MailMessage msgMail = new MailMessage("a#gmail.com", "b#mail.me", "subject", "message body");
SmtpClient smtp = new SmtpClient("smtp.gmail.com", 587);
smtp.EnableSsl = true;
smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
smtp.Credentials = new System.Net.NetworkCredential("a#gmail.com", "a");
try
{
smtp.Send(msgMail);
}
catch (Exception ex)
{
}
reference: http://social.msdn.microsoft.com/Forums/en/netfxnetcom/thread/28b5a576-0da2-42c9-8de3-f2bd1f30ded4
public static string sendMail(string to, string title, string subject, string body)
{
try
{
MailMessage mail = new MailMessage();
SmtpClient smtp = new SmtpClient();
if (to == "")
to = "aevalencia119#gmail.com";
MailAddressCollection m = new MailAddressCollection();
m.Add(to);
mail.Subject = subject;
mail.From = new MailAddress( "aevalencia119#gmail.com");
mail.Body = body;
mail.IsBodyHtml = true;
mail.ReplyTo = new MailAddress("aevalencia119#gmail.com");
mail.To.Add(m[0]);
smtp.Host = "smtp.gmail.com";
client.Port = 587;
smtp.EnableSsl = true;
smtp.Credentials = new System.Net.NetworkCredential("aevalencia119#gmail.com", "####");
ServicePointManager.ServerCertificateValidationCallback = delegate(object s, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) { return true; };
smtp.Send(mail);
return "done";
}
catch (Exception ex)
{
return ex.Message;
}
}