I am trying to integrate SendGrid in ASP.NET MVC application using SmtpClient and MailMessage methods on Azure.
Code:
MailMessage message = new MailMessage();
message.IsBodyHtml = true;
message.Subject = "Subject";
message.To.Add("[email protected]");
message.Body = "Body";
message.From = new MailAddress("[email protected]", "From Name");
SmtpClient client = new SmtpClient("smtp.sendgrid.net");
client.UseDefaultCredentials = false;
client.Credentials = new NetworkCredential("??", "SG.******");
client.DeliveryMethod = SmtpDeliveryMethod.Network;
client.Port = 587; // I have tried with 25 and 2525
client.Timeout = 99999;
client.EnableSsl = false;
client.Send(message);
I end up with this issue both from C# console application and ASP.NET MVC application on Azure VM:
System.Net.Mail.SmtpException: Failure sending mail. ---> System.IO.IOException: Unable to read data from the transport connection: net_io_connectionclosed.
As per the documentation avlb on SendGrid site: https://sendgrid.com/docs/Classroom/Basics/Email_Infrastructure/recommended_smtp_settings.html
The UserName and Password has to : Use the string “apikey” for the SMTP username and use your API key for the password.
I have tried -
SendGrid UserName with which I login to their portal
The API Key from this page https://app.sendgrid.com/settings/api_keys
The password which starts with SG* which is as per their support team.
Any suggestions what am I missing or what which UserName/APIKey should I be using?
Tx!
The link says: Use the string “apikey” for the SMTP username and your API key for the password.
The username was supposed to be "apikey" and not the actual "api key or api name"
client.Credentials = new NetworkCredential("apikey",
"<Your API Key which starts with SG.*>");
Adding "apikey" (facepalm) fixed my problem.