Welcome Guest! To enable all features please Login or Register.



Go to last post Go to first unread
#1 Posted : Monday, May 2, 2011 5:15:08 PM(UTC)

Rank: Administration

Groups: Administrators
Joined: 11/11/2010(UTC)
Posts: 1,143

Thanks: 9 times
Was thanked: 54 time(s) in 54 post(s)
VB6 Example

In an ASP/ASP.NET email application, if email download takes longer than the timeout value (in seconds) that the current asp page is allowed to run, user will get an error "ASP Timeout". This often happens when user has a large quantity of emails to download or user downloads emails via a slow connection. By default the timeout is set to 90 seconds, it is easy to exceed this limit.

Obviously, a solution to ASP timeout is to set ASPScriptTimeout a larger value. You may click here for details. Technically the timeout problem can be solved in this way; however, some users may get frustrated and press the stop button on the browser toolbar as he waits too long.

EAGetMail POP3 Component introduces a more intelligent method to retrieve emails in background. You should download the EAGetMail Service installer and install it on your machine at first. Then you can use MailClient.GetMailsByQueue method to send the request to EAGetMail Service, the method returns to the user immediately and the EAGetMail Service performs task in background.

To run the following example, you also need to download EAGetMail Service and install it on your machine.

The following example codes demonstrate how to download email from POP3 server in background.


' The following example codes demonstrate downloading email from POP3 server in background
' To get full sample projects, please download and install EAGetMail on your machine.
' To run it correctly, please change email server, user, password, folder, file name value to yours

Option Explicit 

Const MailServerPop3 = 0 
Const MailServerImap4 = 1 

Private Sub Command1_Click() 
    Dim curpath As String 
    Dim mailbox As String 
    Dim oTools As New EAGetMailObjLib.Tools 

    ' Create a folder named "inbox" under current directory
    ' to save the email retrieved.
    curpath = App.Path 
    mailbox = curpath & "\inbox" 
    oTools.CreateFolder mailbox 

    Dim oServer As New EAGetMailObjLib.MailServer 
    oServer.Server = "pop3.emailarchitect.net" 
    oServer.User = "test@emailarchitect.net" 
    oServer.Password = "testpassword" 
    oServer.Protocol = MailServerPop3 

    ' If your POP3 requires SSL connection
    ' Please add the following codes
    ' oServer.SSLConnection = True
    ' oServer.Port = 995

    On Error GoTo ErrorHandle: 
    Dim oClient As New EAGetMailObjLib.MailClient 
    oClient.LicenseCode = "TryIt" 

    ' Leave a copy of message on server.
    Dim leaveCopy As Boolean 
    leaveCopy = True 

    ' Download emails to this local folder
    Dim downloadFolder As String 
    downloadFolder = mailbox 

    ' Send request to EAGetMail Service, then EAGetMail Service retrieves email
    ' in background and this method returns immediately.
    oClient.GetMailsByQueue oServer, downloadFolder, leaveCopy 

    Exit Sub 

    MsgBox Err.Description 
End Sub 

Click here to read original topic - full version ...

If you have any comments or questions about above example codes, please add your comments here.
Users browsing this topic
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Powered by YAF.NET | YAF.NET © 2003-2023, Yet Another Forum.NET
This page was generated in 0.047 seconds.


© All Rights Reserved, AIFEI Software Limited & AdminSystem Software Limited.