Download/Retrieve Email from Yahoo account in VB.NET

In previous section, I introduced how to download emails from Gmail account. In this section, I will introduce how to download emails from your Yahoo account in VB.NET.

Introduction

Yahoo POP3 server address is pop.mail.yahoo.com. It requires SSL connection on 995 port; Yahoo IMAP4 server address is imap.mail.yahoo.com . It requires SSL connection on 993 port. You should use your Yahoo email address as the user name for user authentication. For example: your email is myid@yahoo.com, and then the user name should be myid@yahoo.com.

Server Port SSL Protocol
pop.mail.yahoo.com 995 SSL required Pop3
imap.mail.yahoo.com 993 SSL required Imap4

Important

If you got authentication error, you need to enable Allowing less secure apps in your Yahoo account. Although Yahoo supports OAUTH, but it doesn’t provide mail permission, so OAUTH is not a solution for Yahoo mail.

Note

Remarks: All of examples in this section are based on first section: A simple VB.NET project. To compile and run the following example codes successfully, please click here to learn how to create the test project and add reference to your project.

[VB.NET Example - Retrieve emails from Yahoo account using POP3]

The following example codes demonstrate how to download emails from Yahoo account using POP3 protocol.

Note

To get the full sample projects, please refer to Samples section.

Imports System.IO
Imports EAGetMail 'imports EAGetMail namespace

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

        ' Yahoo POP3 server is "pop.mail.yahoo.com"
        Dim oServer As New MailServer("pop.mail.yahoo.com", _
            "yahooid@yahoo.com", "yourpassword", ServerProtocol.Pop3)
        Dim oClient As New MailClient("TryIt")

        ' Enable SSL connection
        oServer.SSLConnection = True

        ' Set 995 port
        oServer.Port = 995

        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 POP3 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 Yahoo Account
                oClient.Delete(info)
            Next

            ' Quit and purge emails marked as deleted from Yahoo POP3 server.
            oClient.Quit()
        Catch ep As Exception
            Console.WriteLine(ep.Message)
        End Try

    End Sub
End Module

[VB.NET Example - Retrieve emails from Yahoo account using IMAP4]

The following example codes demonstrate how to download emails from Yahoo account using IMAP4 protocol.

Note

To get the full sample projects, please refer to Samples section.

Imports System.IO
Imports EAGetMail 'imports EAGetMail namespace

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

        ' Yahoo IMAP4 server is "imap.mail.yahoo.com"
        Dim oServer As New MailServer("imap.mail.yahoo.com", _
            "yahooid@yahoo.com", "yourpassword", ServerProtocol.Imap4)
        Dim oClient As New MailClient("TryIt")

        ' Enable SSL connection
        oServer.SSLConnection = True

        ' Set 993 IMAP 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 POP3 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 Yahoo Account
                oClient.Delete(info)
            Next

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

    End Sub
End Module

Next Section

At next section I will introduce how to download emails from Hotmail/MSN Live/Office 365 account.

Appendix

Comments

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