/// <summary>
///
/// </summary>
/// <param name="server">The server<see cref="DefaultServer"/></param>
/// <param name="toAddress">The toAddress<see cref="string"/></param>
/// <returns>A <see cref="Task{T}"/> representing the async operation</returns>
private async Task SendMessage_MailKit_Async(DefaultServer server, string toAddress, string fromAddress = "*****@*****.**", MailKit.Security.SecureSocketOptions secureSocketOptions = MailKit.Security.SecureSocketOptions.None)
{
MimeMessage message = NewMessage(toAddress, fromAddress);
using (MailKit.Net.Smtp.SmtpClient client = new MailKit.Net.Smtp.SmtpClient(new SmtpClientLogger(this.output)))
{
client.CheckCertificateRevocation = false;
client.ServerCertificateValidationCallback = (mysender, certificate, chain, sslPolicyErrors) => {
return(true);
};
client.SslProtocols = System.Security.Authentication.SslProtocols.Tls12;
await client.ConnectAsync("localhost", server.PortNumber, secureSocketOptions).ConfigureAwait(false);
await client.SendAsync(new FormatOptions { International = true }, message).ConfigureAwait(false);
await client.DisconnectAsync(true).ConfigureAwait(false);
}
}
/// <summary>
/// Sends a <see cref="EmailMessage"/>
/// </summary>
/// <param name="emailMessage"></param>
public void Send(EmailMessage emailMessage)
{
//Get Message Client
var message = new MimeMessage();
//Add email reciever to Message Client
message.To.AddRange(emailMessage.ToAddresses.Select(x => new MailboxAddress(x.Name, x.Address)));
//Add email sender to Message Client
message.From.AddRange(emailMessage.FromAddresses.Select(x => new MailboxAddress(x.Name, x.Address)));
//Add Subject to Message Client
message.Subject = emailMessage.Subject;
//Add the Content in HTML Format to Message Client
message.Body = new TextPart(TextFormat.Html)
{
Text = emailMessage.Content
};
//Get SSL Settings
var options = new MailKit.Security.SecureSocketOptions();
switch (_emailConfiguration.SecureOptions)
{
case "SSL":
options = MailKit.Security.SecureSocketOptions.SslOnConnect;
break;
case "TLS":
options = MailKit.Security.SecureSocketOptions.StartTls;
break;
case "TLSlight":
options = MailKit.Security.SecureSocketOptions.StartTlsWhenAvailable;
break;
case "None":
options = MailKit.Security.SecureSocketOptions.None;
break;
default:
options = MailKit.Security.SecureSocketOptions.Auto;
break;
}
//Gets the emailClient
using (var emailClient = new MailKit.Net.Smtp.SmtpClient())
{
//Connect with the SMTP Settings from Config File (Dependencie Injection)
emailClient.Connect(_emailConfiguration.SmtpServer, _emailConfiguration.SmtpPort, options);
//Remove OAuth Header
emailClient.AuthenticationMechanisms.Remove("XOAUTH2");
//Authenticat with the Server with the Settings from Config File (Dependencie Injection)
emailClient.Authenticate(_emailConfiguration.SmtpUsername, _emailConfiguration.SmtpPassword);
//Sends the Smime Message
emailClient.Send(message);
//Logout from Server
emailClient.Disconnect(true);
}
}
