MailKit.Net.Imap.ImapClient.ComputeDefaultValues C# (CSharp) Метод

		static void ComputeDefaultValues (string host, ref int port, ref SecureSocketOptions options, out Uri uri, out bool starttls)
		{
			switch (options) {
			default:
				if (port == 0)
					port = 143;
				break;
			case SecureSocketOptions.Auto:
				switch (port) {
				case 0: port = 143; goto default;
				case 993: options = SecureSocketOptions.SslOnConnect; break;
				default: options = SecureSocketOptions.StartTlsWhenAvailable; break;
				}
				break;
			case SecureSocketOptions.SslOnConnect:
				if (port == 0)
					port = 993;
				break;
			}

			switch (options) {
			case SecureSocketOptions.StartTlsWhenAvailable:
				uri = new Uri ("imap://" + host + ":" + port + "/?starttls=when-available");
				starttls = true;
				break;
			case SecureSocketOptions.StartTls:
				uri = new Uri ("imap://" + host + ":" + port + "/?starttls=always");
				starttls = true;
				break;
			case SecureSocketOptions.SslOnConnect:
				uri = new Uri ("imaps://" + host + ":" + port);
				starttls = false;
				break;
			default:
				uri = new Uri ("imap://" + host + ":" + port);
				starttls = false;
				break;
			}
		}