确定System.Net.Mail.SmtpClient.Send结果
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我试图使用一个枚举来总结ѭ0的结果。这样一来，我知道是否应该重试发送电子邮件，并希望防止重复发送电子邮件。
public enum MailSendStatus {
None,
Sent,
ErrorCannotSend,
TryAgain,
SentMaybe
}
SmtpException.StatusCode
try {
smtp.Send(msg);
} catch (ArgumentNullException e) {
return MailSendStatus.ErrorCannotSend;
} catch (ObjectDisposedException e) {
return MailSendStatus.ErrorCannotSend;
} catch (InvalidOperationException e) {
return MailSendStatus.ErrorCannotSend;
} catch (SmtpFailedRecipientsException e) {
return MailSendStatus.ErrorCannotSend;
} catch (SmtpException e) {
switch(e.StatusCode) {
case SmtpStatusCode.BadCommandSequence:
case SmtpStatusCode.MailboxNameNotAllowed:
case SmtpStatusCode.HelpMessage:
case SmtpStatusCode.SyntaxError:
case SmtpStatusCode.SystemStatus:
return MailSendStatus.ErrorCannotSend;
case SmtpStatusCode.CannotVerifyUserWillAttemptDelivery:
case SmtpStatusCode.UserNotLocalWillForward:
return MailSendStatus.SentMaybe;
case SmtpStatusCode.ClientNotPermitted:
case SmtpStatusCode.CommandNotImplemented:
case SmtpStatusCode.CommandParameterNotImplemented:
case SmtpStatusCode.CommandUnrecognized:
case SmtpStatusCode.ExceededStorageAllocation:
case SmtpStatusCode.GeneralFailure:
case SmtpStatusCode.InsufficientStorage:
case SmtpStatusCode.LocalErrorInProcessing:
case SmtpStatusCode.MailboxBusy:
case SmtpStatusCode.MailboxUnavailable:
case SmtpStatusCode.MustIssueStartTlsFirst:
case SmtpStatusCode.ServiceClosingTransmissionChannel:
case SmtpStatusCode.ServiceNotAvailable:
case SmtpStatusCode.ServiceReady:
case SmtpStatusCode.StartMailInput:
case SmtpStatusCode.TransactionFailed:
case SmtpStatusCode.UserNotLocalTryAlternatePath:
return MailSendStatus.TryAgain;
case SmtpStatusCode.Ok:
break;
}
} catch (Exception e) {
return MailSendStatus.SentMaybe;
}
return MailSendStatus.Sent;
没有找到相关结果
已邀请:
1 个回复
樊熄忙暖
catch (ArgumentNullException e) { return MailSendStatus.ErrorCannotSend;} catch (ObjectDisposedException e) { return MailSendStatus.ErrorCannotSend;} catch (InvalidOperationException e) { return MailSendStatus.ErrorCannotSend;