B4J Question Error trying to send email

[Cristian Rufino]

Hello, I try to send a test email and after several seconds the operation ends with an error. Any idea that it could be wrong with my code? Thanks in advance

'Non-UI application (console / server application)
#Region Project Attributes 
    #CommandLineArgs:
    #MergeLibraries: True 
#End Region

Sub Process_Globals
    Dim SmtpServer As SMTP
End Sub

Sub AppStart (Args() As String)
    CallSubDelayed(Me, "EnviarCorreo")
    StartMessageLoop   
End Sub

'Return true to allow the default exceptions handler to handle the uncaught exception.
Sub Application_Error (Error As Exception, StackTrace As String) As Boolean
    Return True
End Sub

Private Sub EnviarCorreo
    SmtpServer.Initialize("smtp.fibertel.com.ar", 25, "[email protected]","xxxxxx","SMTP")
    SmtpServer.To.Add("[email protected]")
    SmtpServer.Subject = "Prueba de Envio"
    SmtpServer.Body = "Prueba Prueba Prueba Prueba"
    SmtpServer.Send
End Sub

Sub SMTP_MessageSent(Success As Boolean)
    If Success Then
        Log("*** OK ***")
    Else
        Log("*** Error ***")
    End If
End Sub

Waiting for debugger to connect...
Program started.
java.lang.RuntimeException: Empty writer returned: 503 5.5.2 Hi [1xx.xx8.1xx.x5], Waiting for RCPT command
at anywheresoftware.b4a.net.SMTPWrapper$1.run(SMTPWrapper.java:313)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
*** Error ***

 

[Erel]

No reason to use CallSubDelayed here.

Probably an authentication issue.
Does the mail server allow plain text connections? If not then set UseSSL or StartTlsMode. There are also three AuthMethods that you should try.

 

[Cristian Rufino]

SmtpServer.AuthMethod = SmtpServer.AUTH_LOGIN

Thanks Erel