protected void btnSubmit_Click(object sender, EventArgs e)
{
try
{
MailMessage mailMessage = new MailMessage();
mailMessage.From = new MailAddress(txtEmail.Text.ToString());
mailMessage.Subject = txtSubject.Text.ToString();
mailMessage.To.Add(new MailAddress("my#gmail.com"));
mailMessage.Body = txtSuggestion.Text.ToString();
mailMessage.IsBodyHtml = true;
SmtpClient sc = new SmtpClient();
sc.Host = "smtp.gmail.com";
sc.Port = 587;
sc.Credentials = new NetworkCredential(txtEmail.Text.ToString(), txtPassword.Text.ToString());
sc.EnableSsl = true;
sc.Send(mailMessage);
lblMessage.Text = "Message Sent Successfully";
txtSubject.Text = "";
txtEmail.Text = "";
txtName.Text = "";
txtSuggestion.Text = "";
}
catch (Exception ex)
{
lblMessage.Text = ex.Message;
}
}
This is the code i am using to send email but whenever i am trying to run the application, i am getting error.
enter image description here
if someone can help why i am getting the error, that would be great.
When using SSL, try using port 465.
https://support.google.com/a/answer/176600
You also have another issue with that code that's un-related to the one you're subscribing. When setting up contact us forms, using the person's email as the FROM field will cause DMARC to fail. You can read up about that here
Also I don't understand why you are using the person's email address and password to connect to gmail with. You should use your own account if you're sending mail.
Related
I am trying to send bulk of emails through smtp server using gmail account, but i am facing issue like this: "The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.0 Must issue a STARTTLS command first. ry1sm18393619pab.30 - gsmtp". I am using Asp.net c# console application.
here is my code which i am using:
static void Main(string[] args)
{
EmailSend send = new EmailSend();
send.Page_Load();
}
protected void Page_Load()
{
try
{
MailMessage msg = new MailMessage(new MailAddress("abc#gmail.com"), new MailAddress("abc#gmail.com"));
msg.Subject = "Test link..";
msg.IsBodyHtml = true;
string emailid = "abc#gmail.com";
string password = "abc123";
string host = "smtp.gmail.com";
SmtpClient smtpclient = new SmtpClient();
smtpclient.Host = host;
smtpclient.EnableSsl = true;
smtpclient.Port = 587;
smtpclient.UseDefaultCredentials = false;
smtpclient.Credentials = new System.Net.NetworkCredential(emailid, password);
smtpclient.Send(msg);
Console.WriteLine("A link has been send to you for resetting password. Check your mail! ");
}
catch (Exception ex)
{
Console.WriteLine("Could not send the e-mail - error: " + ex.Message);
}
}
I don't understand why this issue is coming. I have given correct credentials like: Emailid and password for gmail, i have changed port number also 25,587. If anyone has some sloution then it would be very helpful.
I am trying to send mail using GoDaddy mail server with SMTPClient in ASP.NET and my code is below , I have tried all the ports in GoDaddy but i couldn't send a mail
My code:
try
{
//Mail Message
MailMessage mM = new MailMessage();
//Mail Address
mM.From = new MailAddress("xxx#sender.com");
//receiver email id
mM.To.Add("xxx#receiver.com");
//subject of the email
mM.Subject = "your subject line will go here";
mM.Body = "Body of the email";
mM.IsBodyHtml = true;
//SMTP client
SmtpClient sC = new SmtpClient();
//credentials to login in to hotmail account
sC.Credentials = new NetworkCredential(username, password);
//port number for Hot mail
sC.Port = 25;
sC.Host = "smtpout.asia.secureserver.net";
sC.UseDefaultCredentials = false;
//enabled SSL
sC.EnableSsl = false;
sC.DeliveryMethod = SmtpDeliveryMethod.Network;
sC.Timeout = 40000;
//Send an email
sC.Send(mM);
}
catch (Exception ex)
{
var temp = ex.Message;
}
I have also used port no 465 with enablessl = true but no success
I was struggling with this too and found a solution.
The problem is that GoDaddy uses Implicit SSL (SMTPS) and this is NOT supported with System.Net.Mail.
It should be possible to use a GoDady Relay account, but then you can only send 250 emails per day AND the email sent will be SPAM unvisible at receiver side!
Then I found an open source library: http://sourceforge.net/projects/netimplicitssl/
You can get this package via NuGet in Visual Studio.
Search for: Aegis Implicit Mail.
I can tell you that this works perfectly !
private void _SendEmail()
{
try
{
var mail = "YourEmail#YourGoDaddyWebsite.com";
var host = "smtpout.europe.secureserver.net";
var user = "YourEmail#YourGoDaddyWebsite.com";
var pass = "YourGoDaddyPassword!";
//Generate Message
var message = new MimeMailMessage();
message.From = new MimeMailAddress(mail);
message.To.Add("receiver#website.com");
message.Subject = "Subject Text...";
message.Body = "Body Text...";
//Create Smtp Client
var mailer = new MimeMailer(host, 465);
mailer.User = user;
mailer.Password = pass;
mailer.SslType = SslMode.Ssl;
mailer.AuthenticationMode = AuthenticationType.Base64;
//Set a delegate function for call back
mailer.SendCompleted += compEvent;
mailer.SendMailAsync(message);
}
catch (Exception ex)
{
string msg = ex.Message;
}
}
private void compEvent(object sender, AsyncCompletedEventArgs e)
{
if (e.UserState != null)
Console.Out.WriteLine(e.UserState.ToString());
Console.Out.WriteLine("is it canceled? " + e.Cancelled);
if (e.Error != null)
Console.Out.WriteLine("Error : " + e.Error.Message);
}
you should note you cannot sent non-html, or plain text emails. The message.IsBodyHtml member does not seem to work currently.
I am developping an ASP .Net website.
One of my ASPX page contains a button.
When this button is clicked I want to send an email by using the Gmail SMTP server.
I want to use my Gmail account as credentials.
Here is the button's click event handler :
protected void m_myButton_Click(object p_sender, EventArgs p_args)
{
string l_subject = "My subject";
StringBuilder l_builder = new StringBuilder();
// ...
string l_body = l_builder.ToString();
string l_host = ConfigurationManager.AppSettings["SmtpHost"];
int l_port = int.Parse(ConfigurationManager.AppSettings["SmtpPort"]);
NameValueCollection l_smtpAccount = (NameValueCollection)ConfigurationManager.GetSection("smtpAccount");
string l_address = l_smtpAccount["SmtpAddress"];
string l_password = l_smtpAccount["SmtpPassword"];
MailMessage l_mail = new MailMessage();
l_mail.From = new MailAddress(l_address);
l_mail.To.Add(l_address);
l_mail.Subject = l_subject;
l_mail.Body = l_body;
SmtpClient l_smtp = new SmtpClient();
l_smtp.Host = l_host; // l_host = "smtp.gmail.com"
l_smtp.Port = l_port; // l_port = 587
l_smtp.EnableSsl = true;
l_smtp.UseDefaultCredentials = false;
l_smtp.Credentials = new NetworkCredential(l_address, l_password);
l_smtp.Send(l_mail);
}
The command line l_smtp.Send(l_mail) fails.
A SMTP exception is raised and the InnerException property informs me that (translation from French to English) : No connection has been etablished because the target computer has refused it 173.194.67.108:587
My code is based on code found on this page : http://www.codeproject.com/Questions/254743/sending-email-in-asp-net-using-smtp-gmail-server
Any help will be greatly appreciated
Try this...
protected void Button1_Click(object sender, EventArgs e)
{
MailMessage mail = new MailMessage();
mail.To.Add("Email ID where email is to be send");
mail.To.Add("Another Email ID where you wanna send same email");
mail.From = new MailAddress("YourGmailID#gmail.com");
mail.Subject = "Email using Gmail";
string Body = "Hi, this mail is to test sending mail"+
"using Gmail in ASP.NET";
mail.Body = Body;
mail.IsBodyHtml = true;
SmtpClient smtp = new SmtpClient();
smtp.Host = "smtp.gmail.com"; //Or Your SMTP Server Address
smtp.Credentials = new System.Net.NetworkCredential
("YourUserName#gmail.com","YourGmailPassword");
//Or your Smtp Email ID and Password
smtp.EnableSsl = true;
smtp.Send(mail);
}
No connection has been etablished because the target computer has refused it 73.194.67.108:587
Try the other SMTP port: 465
I have turned my antivirus program off as advised by Rup and I have not got any exception.
I will created a custom rule in my antivirus program to allow communication between my ASP .Net website and the Gmail SMTP server.
I want to Run Below code without
NetworkCredential nc = new Net.NetworkCredential("USERNAME", "PASSWORD").
BY using Only Exchange Host (Server Name) And Port
Im Getting Error For this code : Mailbox unavailable. The server response was: 5.7.1 Client does not have permissions to send as this sender
protected void SendEmail(object sender, EventArgs e)
{
SmtpClient smtpClient = new SmtpClient("ExchangeServerName",25);
MailMessage message = new MailMessage();
try
{
MailAddress fromAddress = new MailAddress("bala#OfficeName.com", "From Me");
MailAddress toAddress = new MailAddress("bala#OfficeName.com", "To You");
message.From = fromAddress;
message.To.Add(toAddress);
message.Subject = "Testing!";
message.Body = "This is the body of a sample message";
smtpClient.UseDefaultCredentials = true;
System.Net.NetworkCredential nc = CredentialCache.DefaultNetworkCredentials;
smtpClient.Credentials = (System.Net.ICredentialsByHost)nc.GetCredential("ExchangeServerName", 25, "Basic");
smtpClient.Send(message);
lblText.Text ="Email sent.";
}
catch (Exception ex)
{
lblText.Text = "Coudn't send the message!\n " + ex.Message;
}
}
I have done it. For more details about my code use this link.
Below Code is worked Fine with
Server : Windows Server 2003,Windows Server 2008,Windows Server 2008 R2
IIS : 6.0, 7.0
.Net Frame Wotk : 2.0,3.5,4.0
string sMessage;
SmtpClient smtpClient = new SmtpClient();
MailMessage message = new MailMessage();
try
{
//you can provide invalid from address. but to address Should be valil
MailAddress fromAddress = new MailAddress("bala#technospine.com", "BALA");
smtpClient.Host = "Exchange Server Name";
smtpClient.Port = 25;
//smtpClient.Port = 587;
smtpClient.UseDefaultCredentials = true;
message.From = fromAddress;
message.To.Add(bala#technospine.com); //Recipent email
message.Subject = _subject;
message.Body = _details;
message.IsBodyHtml = true;
//smtpClient.EnableSsl = true;
smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
smtpClient.Send(message);
sMessage = "Email sent.";
}
catch (Exception ex)
{
sMessage = "Coudn't send the message!\n " + ex.Message;
}
lblMailStatus.Text = sMessage;
You are attempting to send a mail message using Exchange. In order to do that, the sender (or sending process) must have permissions on the account it is logged in under to send on behalf of the user you are specifying as the sender. This is different from going through Exchange's SMTP mail transfer agent (MTA) in order to have Exchange receive and route an email message. So you are on the right track with knowing you should do this using SMTP, but you are just trying to use the wrong API for accomplishing this. You want to take a look at CDOSYS for sending it through the SMTP MTA without having to do user authentication. Search on System.Web.Mail.MailMessage for more specific examples - there are plenty out there. If the Exchange server does not seem to accept/deliver the SMTP message delivered to it in this fashion, you might simply need to open up its configuration a bit. In that event, the Exchange server is probably configured with tight security on routing of mail received via its SMTP MTA and just needs to have the IP address of the machine(s) you are sending these messages from configured to allow for mail forwarding.
try NetworkCredential nc = new Net.NetworkCredential("USERNAME", "PASSWORD","DOMAIN")
I have this code to send email notification in my page.
MailAddress to = new MailAddress("xxxxx#gmail.com");
MailAddress from = new MailAddress("xxx#gmail.com");
MailMessage message = new MailMessage(from, to);
message.Subject = "Error Occred in the application:";
message.Body = ex.Message;
SmtpClient client = new SmtpClient("smtp.gmail.com", 587);
client.EnableSsl = true;
client.Credentials = new NetworkCredential("user", "password");
Is there any other way we have without giving credentials to send the message?
There are some workarounds mentioned here
Only on servers that allow anonymous sending, which Gmail doesn't.
If you have an open mail relay that doesn't require credentials, then you don't need to supply them.
use this code spinet for that,
protected void btnSubmit_Click(object sender, EventArgs e)
{
try
{
MailAddress SendFrom = new MailAddress(txtFrom.Text);
MailAddress SendTo = new MailAddress(txtTo.Text);
MailMessage MyMessage = new MailMessage(SendFrom, SendTo);
MyMessage.Subject = txtSubject.Text;
MyMessage.Body = txtBody.Text;
Attachment attachFile = new Attachment(txtAttachmentPath.Text);
MyMessage.Attachments.Add(attachFile);
SmtpClient emailClient = new SmtpClient(txtSMTPServer.Text);
emailClient.Send(MyMessage);
litStatus.Text = "Message Sent";
}
catch (Exception ex)
{
litStatus.Text=ex.ToString();
}
}
i hope this will be helpful.