ivan
  • ivan
  • 100% (Exalted)
  • Administration Topic Starter
14 years ago
Visual Basic.NET Example

Gmail IMAP4 server address is "imap.gmail.com". It requires SSL connection on 993 port, and you should use your Gmail email address as the user name for user authentication. For example: your email is "gmailid@gmail.com", and then the user name should be "gmailid@gmail.com".

To retrieve email from Gmail account, you need to enable POP3 or IMAP4 access in your gmail account settings.

Because Gmail POP3 server doesn't work like normal POP3 server, it hides old emails automatically even the email was not deleted, so we suggest that you use IMAP4 protocol.

The following example codes demonstrate how to retrieve email from Gmail IMAP4 server.


' The following example codes demonstrate retrieving email from Gmail IMAP4 server
' 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

Imports System.IO 

' Imports EAGetMail namespace
Imports EAGetMail 

Module Module1 
    Sub Main() 
        ' Create a folder named "inbox" under current directory
        ' to save the email retrieved.
        Dim curpath As String = Directory.GetCurrentDirectory() 
        Dim mailbox As String = [String].Format("{0}\inbox", curpath) 

        ' If the folder is not existed, create it.
        If Not Directory.Exists(mailbox) Then 
            Directory.CreateDirectory(mailbox) 
        End If 

        ' Gmail IMAP server is "imap.gmail.com"
        Dim oServer As New MailServer("imap.gmail.com", _ 
            "gmailid@gmail.com", "yourpassword", ServerProtocol.Imap4 ) 
        Dim oClient As New MailClient("TryIt") 

        ' Enable SSL connection
        oServer.SSLConnection = True 

        ' Set IMAP4 SSL port
        oServer.Port = 993 

        Try 
            oClient.Connect(oServer) 
            Dim infos As MailInfo() = oClient.GetMailInfos() 
            For i As Integer = 0 To infos.Length - 1 
                Dim info As MailInfo = infos(i) 
                Console.WriteLine("Index: {0}; Size: {1}; UIDL: {2}", _ 
                        info.Index, info.Size, info.UIDL) 

                ' Receive email from Gmail server
                Dim oMail As Mail = oClient.GetMail(info) 

                Console.WriteLine("From: {0}", oMail.From.ToString()) 
                Console.WriteLine("Subject: {0}" & vbCr & vbLf, oMail.Subject) 

                ' Generate an email file name based on date time.
                Dim d As System.DateTime = System.DateTime.Now 
                Dim cur As New System.Globalization.CultureInfo("en-US") 
                Dim sdate As String = d.ToString("yyyyMMddHHmmss", cur) 
                Dim fileName As String = [String].Format("{0}\{1}{2}{3}.eml", _ 
                     mailbox, sdate, d.Millisecond.ToString("d3"), i) 

                ' Save email to local disk
                oMail.SaveAs(fileName, True) 

                ' Mark email as deleted in Gmail Account
                oClient.Delete(info) 
            Next 

            ' Quit and pure emails marked as deleted from Gmail IMAP4 server.
            oClient.Quit() 
        Catch ep As Exception 
            Console.WriteLine(ep.Message) 
        End Try 

    End Sub 
End Module 
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