ASP.NET Core가 이메일을 보냅니다.

Install-Package MailKit

var message = new MimeMessage ();
message.From.Add (new MailboxAddress ("Joey Tribbiani", "joey@friends.com"));
message.To.Add (new MailboxAddress ("Mrs. Chanandler Bong", "chandler@friends.com"));

message.Subject = "星期天去哪里玩？";

message.Body = new TextPart ("plain") { Text = "我想去故宫玩，如何" };using (var client = new SmtpClient ()) {    // For demo-purposes, accept all SSL certificates (in case the server supports STARTTLS)
    client.ServerCertificateValidationCallback = (s,c,h,e) => true;

    client.Connect ("smtp.friends.com", 587, false);    // Note: since we don't have an OAuth2 token, disable
    // the XOAUTH2 authentication mechanism.
    client.AuthenticationMechanisms.Remove ("XOAUTH2");    // Note: only needed if the SMTP server requires authentication
    client.Authenticate ("joey", "password");

    client.Send (message);
    client.Disconnect (true);
}

var bodyBuilder = new BodyBuilder();
bodyBuilder.HtmlBody = @"<b>This is bold and this is <i>italic</i></b>";
message.Body = bodyBuilder.ToMessageBody();

Install-Package FluentEmail.Razor

//注意： .NET 4.6 才支持Email.DefaultSender = new SmtpSender();var email = Email
    .From("foo@email.com")
    .To("bar@email.com", "bob")
    .Subject("星期天去哪里玩？")
    .Body("我想去故宫玩，如何？");

await email.SendAsync();

//注意： .NET 4.6 才支持Email.DefaultSender = new SmtpSender();// Using Razor templating packageEmail.DefaultRenderer = new RazorRenderer();

var template = "Dear @Model.Name, You are totally @Model.Compliment.";var email = Email
    .From("bob@hotmail.com")
    .To("somedude@gmail.com")
    .Subject("woo nuget")
    .UsingTemplate(template, new { Name = "Luke", Compliment = "Awesome" });

//注意： .NET 4.6 才支持Email.DefaultSender = new SmtpSender();

Email.DefaultRenderer = new RazorRenderer();var email = Email
    .From("foo@email.com")
    .To("bar@email.com", "bob")
    .Subject("星期天去哪里玩？")
    .UsingTemplateFromFile($"{Directory.GetCurrentDirectory}/EmailTemplage.cshtml", new {Name ="Luke"})

Install-Package FluentEmail.Mailgun

// 同时支持 .NET Core 和 .NET Frameworkvar sender = new MailgunSender(    "sandboxcf5f41bbf2f84f15a386c60e253b5fe8.mailgun.org", // Mailgun 二级域名
    "key-8d32c046d7f14ada8d5ba8253e3e30df" // Mailgun API Key);

Email.DefaultSender = sender;var email = Email
    .From("foo@email.com")
    .To("bar@email.com", "bob")
    .Subject("星期天去哪里玩？")
    .Body("我想去故宫玩，如何？");

await email.SendAsync();