How to resolve this issue when email is not verified?

Hi Team

I have this method and have enabled my authentication on my gmail, still get this exception;

public Task SendAsync(IdentityMessage message)
{
// Plug in your email service here to send an email.
var mailMessage = new MailMessage();
mailMessage.To.Add(new MailAddress(message.Destination));
mailMessage.From = new MailAddress("[email protected]");
mailMessage.Subject = message.Subject;
mailMessage.IsBodyHtml = true;
mailMessage.Body = message.Body;
using (var smtp = new SmtpClient())
{
var credential = new NetworkCredential
{
UserName = "[email protected]",
Password = "***"
};
try
{
smtp.Host = "smtp.gmail.com";
smtp.Port = 587;
smtp.EnableSsl = true;
smtp.UseDefaultCredentials = false;
smtp.Credentials = credential;
smtp.Send(mailMessage);
}
catch (Exception ex)
{
throw;
}
}
return Task.FromResult(0);
}
}

System.Net.Mail.SmtpException: 'The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.0 Authentication Required. Learn more at'

3 Replies

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Varun Setia6y ago
Accepted answer
In Web.config
system.web>
<system.net>
<mailSettings>
  <smtp>
    <network
    host="smtp.gmail.com"
    port="587"
    userName="[email protected]"
    password="****"/>
  smtp>
mailSettings>
system.net>
In SMTP configure the following
smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
Navaneeth Krishnan6y ago
https://www.c-sharpcorner.com/article/sending-email-using-c-sharp/
Jenith Thakkar6y ago
https://hotter.io/docs/email-accounts/secure-app-gmail/

Please refer above link
you need to allow less security from your gmail then after try it