ASP. NET Core uses MialKit to implement mail sending function

The specific code is as follows:

#  Guide pack 
 First we need to import  MailKit NuGet Bag, NuGet The Install Package command is shown in the extension below. 
#  Reference namespace 
using MailKit.Net.Smtp;
using MimeKit;
#  Mail sending help class 
 /// <summary>
 ///  Send Mail 
 /// </summary>
 /// <param name="Name"> Sender's name </param>
 /// <param name="receive"> Receiving mailbox </param>
 /// <param name="sender"> Sending mailbox </param>
 /// <param name="password"> Mailbox password </param>
 /// <param name="host"> Mailbox host </param>
 /// <param name="port"> Mailbox port </param>
 /// <param name="subject"> Mail Subject </param>
 /// <param name="body"> Mail content </param>
 /// <returns></returns>
 public async Task<bool> SendMailAsync(string Name, string receive, string sender, string password, string host, int port, string subject, string body)
 {
  try
  {
 　　　　　　　　　  # MimeMessage Representative 1 Object of an e-mail message 
  var message = new MimeMessage();
 　　　　　　　　　  #  Add Sender Address  Name  Sender's name  sender  Sender's mailbox 
  message.From.Add(new MailboxAddress(Name, sender));
 　　　　　　　　　  #  Add a recipient address 
  message.To.Add(new MailboxAddress("", receive));
 　　　　　　　　　  #  Set up message subject information 
  message.Subject = subject;
 　　　　　　　　　  #  Set up message content 
  var bodyBuilder = new BodyBuilder() { HtmlBody = body };
  message.Body = bodyBuilder.ToMessageBody();
  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;
   // Note: since we don't have an OAuth2 token, disable 
   // the XOAUTH2 authentication mechanism. 
   client.AuthenticationMechanisms.Remove("XOAUTH2");
   client.CheckCertificateRevocation = false;
   //client.SslProtocols = System.Security.Authentication.SslProtocols.Tls12;
   client.Connect(host, port, MailKit.Security.SecureSocketOptions.Auto);
   // Note: only needed if the SMTP server requires authentication
   client.Authenticate(sender, password);
   await client.SendAsync(message);
   client.Disconnect(true);
   return true;
  }
  }
  catch (Exception ex)
  {
  }
  return false;
 }

With the help of this simple mail sending class, we can already realize the mail sending function.

# Extension (NuGet Common Command)

1. Install the specified version: install-package < Package name > -version < Version number >

2. Update package: Update-Package < Package name >

3. Reinstall all Nuget packages (the entire solution will be reinstalled)

  update-package -reinstall

4. Reinstall all Nuget packages for the specified project

update-package -project < Project name > -reinstall

5. Normal unloading: uninstall-package < Package name >

6. Forced uninstall: Uninstall-Package < Package name > -Force

Summarize