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Subject Topic: Return value of Imap.Login method Post ReplyPost New Topic
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witterholt
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Posted: 04 August 2009 at 4:52am | IP Logged Quote witterholt

Hello,

When the password does match the Login method of the Imap object succeeds and returns a True value, but when the password does not match I won't get a return value. I would expect to return False according to the documentation.

Can someone say what could be wrong?

Thanks in advance.

Greetings,
Chris.
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Igor
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Posted: 04 August 2009 at 5:15am | IP Logged Quote Igor

We suggest to enable IMAP logging to check what's going on. If you'd like us to help you on this, you can send us the log file for examination.

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Igor, AfterLogic Support
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witterholt
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Posted: 04 August 2009 at 5:39am | IP Logged Quote witterholt

I send the log. I also turned Global.SafeMode and ThrowExceptions on.
But it keeps waiting for a return value that does not come.
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Alex
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Posted: 04 August 2009 at 7:06am | IP Logged Quote Alex

By default, ThrowExceptions is true. So, if you set it to true, it changes nothing. You need to set it to false if you would like to have Login method return false.

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Alex
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Alex
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Posted: 04 August 2009 at 7:10am | IP Logged Quote Alex

Also, make sure you're not calling another method immediately after Login. From the log, it seems something else is called after failed Login, and this may cause problems.

For instance:

bool succeeded = imp.Login(...)
imp.DownloadFolders()

if (!succeeded) { // claim error; }

If the code is something like above, the exception will be thrown by DownloadFolders methods (even if ThrowExceptions=false) because it's the programmer's error to call DownloadFolders when not connected.

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Alex
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witterholt
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Posted: 05 August 2009 at 1:05am | IP Logged Quote witterholt

I now catch the Exception and that works as expected. So if the password does not match it will generate a MailBee exception which I catch.
I would like to throw that exception to the calling assembly, but that does not seem to work.

Catch ex As MailBee.MailBeeException

             oImap.ResetState()

             Throw New Exception("Problem in ReadMailBox method of e-Invoice Datacollector Mail Object: ", ex)

It won't be catched by the calling assembly.
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Igor
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Posted: 05 August 2009 at 2:30am | IP Logged Quote Igor

Quote:
It won't be catched by the calling assembly.


Could you please clarify this? Don't you get any exceptions at all?

We suggest to make sure that the calling assembly contains a reference to MailBee namespace and thus is aware of it.

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witterholt
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Posted: 05 August 2009 at 5:01am | IP Logged Quote witterholt

Yes.
In the calling (main) assembly I have a reference added to the MailBee.NET assembly and imported the namespace by using the "Imports MailBee".

The catch block of the called assembly looks like this:

Catch ex_mb As MailBee.MailBeeException
oImap.ResetState()

Throw New Exception("Problem in ReadMailBox method of e-Invoice Datacollector Mail Object: ", ex_mb)

Return False

Catch ex As Exception

Throw New Exception("Problem in ReadMailBox method of e-Invoice Datacollector Mail Object: ", ex)

oImap.Close()

' Disconnect and clean up
If oImap.IsConnected Then oImap.Disconnect()

Return False

End Try

The catch block of the calling assembly looks like this:

Catch Ex_Mb As MailBeeException

EventLog.WriteEntry(Me.ServiceName, "Error", EventLogEntryType.Error)

If Ex_Mb.InnerException Is Nothing Then
    EventLog.WriteEntry(Me.ServiceName, "Error in CheckForMessages function." & vbCrLf & vbCrLf & _
"Error: " & Ex_Mb.Message, EventLogEntryType.Warning)
Else
    EventLog.WriteEntry(Me.ServiceName, "Error in CheckForMessages function." & vbCrLf & vbCrLf & _
"Error: " & Ex_Mb.Message & _
                                     Ex_Mb.InnerException.Message & _
                                       Ex_Mb.InnerException.InnerException.Message & _
                                       Ex_Mb.InnerException.InnerException.InnerException.Message, EventLogEntryType.Warning)
End If

Catch Ex As Exception

If Ex.InnerException Is Nothing Then
    EventLog.WriteEntry(Me.ServiceName, "Critical error in CheckForMessages function. Service " & Me.ServiceName & " will be stopped." & vbCrLf & vbCrLf & _
"Error: " & Ex.Message, EventLogEntryType.Error)
Else
    EventLog.WriteEntry(Me.ServiceName, "Critical error in CheckForMessages function. Service " & Me.ServiceName & " will be stopped." & vbCrLf & vbCrLf & _
"Error: " & Ex.Message & _
                                       Ex.InnerException.Message & _
                                       Ex.InnerException.InnerException.Message & _
                                       Ex.InnerException.InnerException.InnerException.Message, EventLogEntryType.Error)
End If

' Stop the windows service
Me.Stop()

End Try
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Alex
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Posted: 05 August 2009 at 7:00am | IP Logged Quote Alex

Unfortunately, we can't say why your own exceptions are not caught by your code as this is beyond the scope of MailBee. Maybe, you're using threading, and the worker thread throwing exception simply dies.

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Alex
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witterholt
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Posted: 07 August 2009 at 8:31am | IP Logged Quote witterholt

Okay, I have a workaround made so it let it rest for now.
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setven17
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Posted: 05 October 2009 at 1:45am | IP Logged Quote setven17

at last i've come up on a solution. thank you so much. even confusion took place on me on the codes but it's okay now. thank you so much.

Company Voluntary Arrangement
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