Simple send Email Code

I am sharing simple send email code

public static Task SendMailAsync(string To, string Subject, string Body)

{

               

    var CredentialUserName = ConfigurationManager.AppSettings["MailUserIdCredential"];

    var Password = ConfigurationManager.AppSettings["MailPasswordCredential"];

    var MailServer = ConfigurationManager.AppSettings["MailServer"];

    var credentialUserName = CredentialUserName;

    var sentFrom = MailSentFrom;

    var pwd = Password;

    SmtpClient client = new SmtpClient(MailServer);

    client.Port = 587;

    client.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;

    client.UseDefaultCredentials = false;

    // Create the credentials:

   NetworkCredential credentials = new System.Net.NetworkCredential(credentialUserName, pwd);

    client.EnableSsl = true;

    client.Credentials = credentials;

    // Create the message:

    var mail = new MailMessage(sentFrom, To);

    mail.Subject = Subject;

    mail.Body = Body;

    mail.IsBodyHtml = true;

    return client.SendMailAsync(mail);

  }