Send emails using SendGrid Email provider and ASP.Net Core

Sending emails using SendGrid email provider and ASP.Net Core is very straightforward.
Firstly install SendGrid package through Package Manager Console using the following command

install-package SendGrid

Now create a account in and add an API key to use the SendGrid provider service.  Add this key to your AppSettings.Json or AppSettings.Development.Json under a new SendGridEmailSettings=>SendGridKey node.



"SendGridEmailSettings": {
"SendGridKey": <SendGrid Private API Key>


public void ConfigureServices(IServiceCollection services)
services.AddTransient<IEmailSender, EmailSender>();
services.Configure<AuthMessageSenderOptions>(options =>

EmailSender .cs

using Microsoft.AspNetCore.Identity.UI.Services;
using Microsoft.Extensions.Options;
using SendGrid;
using SendGrid.Helpers.Mail;
using System.Threading.Tasks;

public class AuthMessageSenderOptions
public string SendGridUser { get; set; }
public string SendGridKey { get; set; }
public class EmailSender : IEmailSender
public EmailSender(IOptions optionsAccessor)
Options = optionsAccessor.Value;
public AuthMessageSenderOptions Options { get; } //set only via Secret Manager
public Task SendEmailAsync(string email, string subject, string message)
return Execute(Options.SendGridKey, subject, message, email);
public Task Execute(string apiKey, string subject, string message, string email)
var sendGridClient = new SendGridClient(apiKey);
var sendGridMessage = new SendGridMessage()
From = new EmailAddress("", "Simpler Products-Social Media Scrubber"),
Subject = subject,
PlainTextContent = message,
HtmlContent = message
sendGridMessage.AddTo(new EmailAddress(email));
// Disable click tracking.See
sendGridMessage.SetClickTracking(false, false);
return sendGridClient.SendEmailAsync(sendGridMessage);

If you send an email and you do not receive it in your mailbox check the spam folder. My emails landed in the spam folder when I was testing the application.

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