how to connect MailKit or SMTPClient to zenno C#

[Besedi]

GitHub - jstedfast/MailKit: A cross-platform .NET library for IMAP, POP3, and SMTP.

A cross-platform .NET library for IMAP, POP3, and SMTP. - jstedfast/MailKit

github.com

SmtpClient.Credentials Property (System.Net.Mail) | Microsoft Learn

Gets or sets the credentials used to authenticate the sender.

docs.microsoft.com

absolutely newbie with c#, how can I use default SMTPclient?
I tried smt like that:

string server= "smtp.aol.com";
int port = 465;
public static void CreateTestMessage1(string server, int port)
{
string to = "[email protected]";
string from = "[email protected]";
string subject = "Using the new SMTP client.";
string body = @"Using this new feature, you can send an email message from an application very easily.";
MailMessage message = new MailMessage(from, to, subject, body);
SmtpClient client = new SmtpClient(server, port);
// Credentials are necessary if the server requires the client
// to authenticate before it will send email on the client's behalf.
client.Credentials = CredentialCache.DefaultNetworkCredentials;
client.Send(message);
}
But can't understand how I use my credential, what's var I need to use?
And I recieve a error about first line...
"
Compiling code Error in action "CS1513" "expected }". [Line: 1; Column: 16]" "

 

[Besedi]

any one suggestions?

 

[VladZen]

If you are newbie in C#, why would not you use built-in Send emals functionality?

 

[Besedi]

If you are newbie in C#, why would not you use built-in Send emals functionality?

It's not work properly. I already tried, as well as buy socks with open 465 ports to test but it's also unfortunely unseccessfully. I can connect smtp account to thunderbird and send some messages from there, but when I connect email (in zenno 7.7) it's messaged me that "all right" but error when I trying to send any email.
Error: The SMTP server has unexpectedly disconnected.

 

[myndeswx]

I would highly suggest you to use the API instead, much easier, pretty much every mailing service I have used has a simple API.