C# projeleriniz için e-posta yollama sınıfı

 /// Örnek kullanım:
EnhancedMailMessage msg = new EnhancedMailMessage();

msg.From = "gonderen@site.com";
msg.FromName = "Gönderen Adı";
msg.To = "alici@site.com";
msg.Subject = "Konu";
msg.Body = "Mesaj";

msg.SMTPServerName = "smtp.sunucu.com";
msg.SMTPUserName = "kullanici";
msg.SMTPUserPassword = "parola";

msg.Send();




/// Sınıf kodları:
public class EnhancedMailMessage : MailMessage
{
    private string fromName;
    private string smtpServerName;
    private string smtpUserName;
    private string smtpUserPassword;
    private int smtpServerPort;
    private bool smtpSSL;

    public EnhancedMailMessage()
    {
        fromName = string.Empty;
        smtpServerName = string.Empty;
        smtpUserName = string.Empty;
        smtpUserPassword = string.Empty;
        smtpServerPort = 25;
        smtpSSL = false;
    }

    /// <summary>
    /// The display name that will appear
    /// in the recipient mail client
    /// </summary>
    public string FromName 
    {
        set 
        {
            fromName = value;
        }
        get 
        {
            return fromName;
        }
    }

    /// <summary>
    /// SMTP server (name or IP address)
    /// </summary>
    public string SMTPServerName 
    {
        set 
        {
            smtpServerName = value;
        }
        get 
        {
            return smtpServerName;
        }
    }

    /// <summary>
    /// Username needed for a SMTP server
    /// that requires authentication
    /// </summary>
    public string SMTPUserName 
    {
        set 
        {
            smtpUserName = value;
        }
        get 
        {
            return smtpUserName;
        }
    }
    
    /// <summary>
    /// Password needed for a SMTP server
    /// that requires authentication
    /// </summary>
    public string SMTPUserPassword 
    {
        set 
        {
            smtpUserPassword = value;
        }
        get 
        {
            return smtpUserPassword;
        }
    }
    
    /// <summary>
    /// SMTP server port (default 25)
    /// </summary>
    public int SMTPServerPort 
    {
        set 
        {
            smtpServerPort = value;
        }
        get 
        {
            return smtpServerPort;
        }
    }
    
    /// <summary>
    /// If SMTP server requires SSL
    /// </summary>
    public bool SMTPSSL
    {
        set 
        {
            smtpSSL = value;
        }
        get 
        {
            return smtpSSL;
        }
    }

    public void Send() 
    {
        if (smtpServerName.Length == 0) 
        {
            throw new Exception("SMTP Server not specified");
        }

        if (fromName.Length > 0) 
        {
            this.Headers.Add("From", 
                 string.Format("{0} <{1}>", 
                 FromName, From));            
        }

        // set SMTP server name
        this.Fields["http://schemas.microsoft.com/" + 
                    "cdo/configuration/smtpserver"] = smtpServerName;
        // set SMTP server port
        this.Fields["http://schemas.microsoft.com/cdo" + 
                    "/configuration/smtpserverport"] = smtpServerPort;
        this.Fields["http://schemas.microsoft.com/" + 
                    "cdo/configuration/sendusing"] = 2;

        if (smtpUserName.Length >0 && smtpUserPassword.Length > 0) 
        {
            this.Fields["http://schemas.microsoft.com/" + 
                        "cdo/configuration/smtpauthenticate"] = 1;
            
            // set SMTP username
            this.Fields["http://schemas.microsoft.com" + 
                 "/cdo/configuration/sendusername"] = smtpUserName;
            // set SMTP user password
            this.Fields["http://schemas.microsoft.com/" + 
                 "cdo/configuration/sendpassword"] = smtpUserPassword;
        }

        // ssl if needed
        if (smtpSSL) 
        {
            this.Fields.Add("http://schemas.microsoft" + 
                 ".com/cdo/configuration/smtpusessl", "true");
        }

        SmtpMail.SmtpServer = smtpServerName;
        SmtpMail.Send(this);
    }

    public static void QuickSend(
        string SMTPServerName, 
        string ToEmail, 
        string FromEmail, 
        string Subject, 
        string Body, 
        MailFormat BodyFormat) 
    {
        EnhancedMailMessage msg = new EnhancedMailMessage();

        msg.From = FromEmail;
        msg.To = ToEmail;
        msg.Subject = Subject;
        msg.Body = Body;
        msg.BodyFormat = BodyFormat;

        msg.SMTPServerName = SMTPServerName;
        msg.Send();
    }
}