Gmail Error :The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required #
I am using following code to send email. The Code works correctly in my local Machine. But on Production server i am getting the error message
var fromAddress = new MailAddress(“mymailid@gmail.com”);
var fromPassword = “xxxxxx”;
var toAddress = new MailAddress(“yourmailid@yourdoamain.com”);
string subject = “subject”;
string body = “body”;
System.Net.Mail.SmtpClient smtp = new System.Net.Mail.SmtpClient
{
Host = “smtp.gmail.com”,
Port = 587,
EnableSsl = true,
DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network,
UseDefaultCredentials = false,
Credentials = new NetworkCredential(fromAddress.Address, fromPassword)
};
using (var message = new MailMessage(fromAddress, toAddress)
{
Subject = subject,
Body = body
})
smtp.Send(message);
Here is Some Solutions :
Solution 1: #
MailMessage mail = new MailMessage();
SmtpClient SmtpServer = new SmtpClient(“smtp.gmail.com”);
mail.From = new MailAddress(“fromaddress@gmail.com”);
mail.To.Add(“toaddress1@gmail.com”);
mail.To.Add(“toaddress2@gmail.com”);
mail.Subject = “Password Recovery “;
mail.Body += ” <html>”;
mail.Body += “<body>”;
mail.Body += “<table>”;
mail.Body += “<tr>”;
mail.Body += “<td>User Name : </td><td> HAi </td>”;
mail.Body += “</tr>”;
mail.Body += “<tr>”;
mail.Body += “<td>Password : </td><td>aaaaaaaaaa</td>”;
mail.Body += “</tr>”;
mail.Body += “</table>”;
mail.Body += “</body>”;
mail.Body += “</html>”;
mail.IsBodyHtml = true;
SmtpServer.Port = 587;
SmtpServer.Credentials = new System.Net.NetworkCredential(“sendfrommailaddress.com”, “password”);
SmtpServer.EnableSsl = true;
SmtpServer.Send(mail);
Solution 2: #
Public Shared Sub enviaDB(ByRef body As String, ByRef file_location As String)
Dim mail As New MailMessage()
Dim SmtpServer As New SmtpClient(“smtp.gmail.com”)
mail.From = New MailAddress(“from@gmail.com”)
mail.[To].Add(“to@gmail.com”)
mail.Subject = “subject”
mail.Body = body
Dim attachment As System.Net.Mail.Attachment
attachment = New System.Net.Mail.Attachment(file_location)
mail.Attachments.Add(attachment)
SmtpServer.Port = 587
SmtpServer.Credentials = New System.Net.NetworkCredential(“user”, “password”)
SmtpServer.EnableSsl = True
SmtpServer.Send(mail)
End Sub
Solution 3: #
var fromAddress = new MailAddress(asd@asd.com, “From Name”);
var toAddress = new MailAddress(“tosend@asd.com”, “To Name”);
const string subject = “Subject”;
const string body = “Body”;
var smtp = new SmtpClient
{
Host = “aspmx.l.google.com”,
Port = 25,
EnableSsl = false
};
using (var message = new MailMessage(fromAddress, toAddress)
{
Subject = subject,
Body = body
})
{
smtp.Send(message);
}
