C# 如何为SmtpException创建函数的重载版本？

我有以下发送电子邮件的方法和包装异常的方法：

public void SendEmail(SendEmailRequest emailRequest)
{
    ...
    catch (SmtpFailedRecipientsException e)
    {
        var failedRecipients = e.InnerExceptions.Select(x => x.FailedRecipient);
        LogAndReThrowWithValidMessage(e, EmailsLocalization.EmailDeliveryFailed, emailRequest.Subject, serverSettings, failedRecipients);
    }
    catch (SmtpFailedRecipientException e)
    {
        LogAndReThrowWithValidMessage(e, EmailsLocalization.EmailDeliveryFailed, emailRequest.Subject, serverSettings, new[] { e.FailedRecipient });
    }
    catch (SmtpException e)
    {
        LogAndReThrowWithValidMessage(e, EmailsLocalization.EmailSendFailedInvalidSettings, emailRequest.Subject, serverSettings);
    }
    catch (Exception e)
    {
         LogAndReThrowWithValidMessage(e, EmailsLocalization.EmailSendFailedGeneralIssues, emailRequest.Subject, serverSettings);
    }
    ...
}

private static void LogAndReThrowWithValidMessage(Exception e, string message, string logSubject, SmtpServerSettings logSettings, IEnumerable<string> failedRecipients = null)
{
    _logger.ErrorException(e,
        "Exception while trying to send message with subject '{0}' using SMTP server {1}:{2}",
         logSubject,
         logSettings.SmtpServerName,
         logSettings.SmtpPort);

    var sendingFailedException = new EmailSendingFailedException(message, e);
    var smtpException = e as SmtpException;
    if (smtpException != null)
    {
        var isGmailServerName = logSettings.SmtpServerName.Contains("gmail.com");
        if (isGmailServerName && smtpException.InnerException.Message.Contains("net_io_connectionclosed"))
        {
            sendingFailedException = new EmailSendingFailedException(EmailsLocalization.EmailSendFailedWrongPortNumber, e);
        }

        // Wrapping authentication exceptions
        if (smtpException.StatusCode == SmtpStatusCode.MustIssueStartTlsFirst || 
            smtpException.Message.Contains("AUTH"))
        {
            sendingFailedException = isGmailServerName ? 
                    new EmailSendingFailedException(EmailsLocalization.EmailSendFailedAuthenticationProblemForGmail, e) : 
                    new EmailSendingFailedException(EmailsLocalization.EmailSendFailedAuthenticationProblem, e);
        }

        // According to Yahoo's spam policy
        if (smtpException.StatusCode == SmtpStatusCode.MailboxNameNotAllowed)
        {
            sendingFailedException = new EmailSendingFailedException(EmailsLocalization.EmailSendFailedWrongFromAddress, e);
        }
    }

    if (failedRecipients != null)
    {
        sendingFailedException.FailedRecipients = failedRecipients;
    }

    throw sendingFailedException;
}

public void sendmail（sendmailrequest emailRequest）
{
...
捕获（SMTPFailedRecipientSexcexception）
{
var failedRecipients=e.InnerExceptions.Select（x=>x.FailedRecipient）；
LogandRetrowWithValidMessage（e，EmailsLocalization.EmailDeliveryFailed，emailRequest.Subject，serverSettings，failedRecipients）；
}
捕获（SmtpFailedRecipientException e）
{
LogandRetrowWithValidMessage（e，EmailsLocalization.EmailDeliveryFailed，emailRequest.Subject，serverSettings，new[]{e.FailedRecipient}）；
}
捕获（SMTPE异常）
{
LogandRetrowWithValidMessage（e，EmailsLocalization.EmailSendFailedValidSettings，emailRequest.Subject，serverSettings）；
}
捕获（例外e）
{
LogandRetrowWithValidMessage（e，EmailsLocalization.EmailSendFailedGeneralises，emailRequest.Subject，serverSettings）；
}
...
}
私有静态无效日志和ThrowWithValidMessage（异常e、字符串消息、字符串日志主题、SmtpServerSettings日志设置、IEnumerable failedRecipients=null）
{
_记录器错误异常（e，
“尝试使用SMTP服务器{1}:{2}发送主题为{0}的邮件时出现异常”，
日志主题，
logSettings.SmtpServerName，
logSettings.SmtpPort）；
var sendingFailedException=新的EmailSendingFailedException（消息，e）；
var smtpException=e作为smtpException；
if（smtpException！=null）
{
var isGmailServerName=logSettings.SmtpServerName.Contains（“gmail.com”）；
if（isGmailServerName&&smtpException.InnerException.Message.Contains（“net\u io\u connectionclosed”））
{
sendingFailedException=新的EmailSendingFailedException（EmailsLocalization.EmailSendFailedErrorPortNumber，e）；
}
//包装身份验证异常
如果（smtpException.StatusCode==SmtpStatusCode.MustIssueStattlsFirst | |
smtpException.Message.Contains（“AUTH”））
{
sendingFailedException=isGmailServerName？
新的EmailSendingFailedException（EmailsLocalization.EmailSendFailedAuthenticationProblemForMail，e）：
新的EmailSendingFailedException（EmailsLocalization.EmailSendFailedAuthenticationProblem，e）；
}
//根据雅虎的垃圾邮件政策
如果（smtpException.StatusCode==SmtpStatusCode.MailboxNameNotAllowed）
{
sendingFailedException=新的EmailSendingFailedException（EmailsLocalization.EmailSendFailedErrorFromAddress，e）；
}
}
if（failedRecipients！=null）
{
sendingFailedException.FailedRecipients=FailedRecipients；
}
抛出发送失败异常；
}

---

如何为将实现此逻辑的

SmtpException

创建函数的重载版本，然后调用原始方法记录ant wrap。另外，现在我的优化消息在日志中丢失了，如何修复它？

您能设计一个继承自

SmtpException

的类吗？然后将要发送的代码放在构造函数的末尾，这样在创建它时，它会发送一个副本？它真的需要重载吗？这将是困难的，因为

SmtpException

也是

例外

，因此可以用任何一种方法履行合同。为什么不换个名字呢？i、 e.

LogAndReThrowSmtpException

，然后在完成该方法的工作后调用

LogAndReThrowWithValidMessage

。好主意。但是你所说的“这样就可以用任何一种方法履行合同”是什么意思呢？