Solved: Sendgrid Email Authentication Error

Radzen Blazor Studio
1

Using ASP.NET Core Identity, I'm getting an error trying to use SendGrid for email. I saw another thread about "User" validation requiring an email for the SMTP user. I changed the user to apikey (per SendGrid Requirements) in appsetting.Development.json but now I get

"The specified string is not in the form required for an e-mail address." Is sendgrid api mail not supported at all?

Solution:

  1. Install the SendGrid Nuget Package (current latest is SendGrid 9.28.1)
  2. Get a Sendgrid API Key (Sendgrid docs here [Manage SendGrid API Keys | Twilio]
  3. Edit appsettings.json or appsettings.Development.json replacing [Smpt:password] with your API key. Note: username doesn't matter for Sendgrid they only care about the API Key so you can refactor your appsettings to match.
    4.Open AccountController.cs
  4. Replace SendEmailAsync(string to, string subjThis text will be hiddenect, string body) with
private async Task SendEmailAsync(string to, striThis text will be hiddenng subject, string body)
{
   var apiKey = configuration.GetValue<string>("Smtp:Password");'
   var client = new SendGridClient(apiKey);
   var from = new EmailAddress("email@somewhere.com", "Sender Name");
   var plainTextContent = body;
   var htmlContent = body;
   var msg = MailHelper.CreateSingleEmail(from, new EmailAddress(to), subject, plainTextContent, htmlContent);
   var response = await client.SendEmailAsync(msg);
}

I hope this helps someone.

2

Hi @Januskey,

You might find answers to such questions in StackOverflow.