Send Email using Yahoo in VB from Windows Store Apps - XAML - UWP¶

' Add EASendMail and Tasks Namespace
Imports EASendMail
Imports System.Threading.Tasks

Public NotInheritable Class MainPage
    Inherits Page

    Protected Overrides Sub OnNavigatedTo(e As Navigation.NavigationEventArgs)

    End Sub

    Private Async Function btnSend_Click(sender As Object, e As RoutedEventArgs) _
        As Task Handles btnSend.Click

        btnSend.IsEnabled = False
        Await Send_Email()
        btnSend.IsEnabled = True

    End Function

    Private Async Function Send_Email() As Task
        Dim Result As String = ""
        Try

            Dim oMail As New SmtpMail("TryIt")

            ' Set Yahoo email address
            oMail.From = New MailAddress("myid@yahoo.com")

            ' Add recipient email address, please change it to yours
            oMail.To.Add(New MailAddress("support@emailarchitect.net"))

            ' Set email subject
            oMail.Subject = "test email from VB XAML project"

            ' Set email body
            oMail.TextBody = "this is a test email sent from Windows Store App using Yahoo."

            ' Yahoo SMTP server address
            Dim oServer As New SmtpServer("smtp.mail.yahoo.com")

            ' User and password for Yahoo user authentication
            oServer.User = "myid@yahoo.com"
            oServer.Password = "testpassword"

            ' Because yahoo deploys SMTP server on 465 port with direct SSL connection.
            ' So we should change the port to 465.
            oServer.Port = 465

            ' detect SSL/TLS type automatically
            oServer.ConnectType = SmtpConnectType.ConnectSSLAuto

            Dim oSmtp As New SmtpClient()

            Await oSmtp.SendMailAsync(oServer, oMail)
            Result = "Email was sent successfully!"

        Catch ep As Exception
            Result = String.Format("Failed to send email with the following error: {0}", ep.Message)
        End Try

        ' Display Result by Diaglog box
        Dim dlg As New Windows.UI.Popups.MessageDialog(Result)
        Await dlg.ShowAsync()
    End Function
End Class

' Add EASendMail and Tasks Namespace
Imports EASendMail
Imports System.Threading.Tasks

Public NotInheritable Class MainPage
    Inherits Page

    Protected Overrides Sub OnNavigatedTo(e As Navigation.NavigationEventArgs)

    End Sub

    Private Async Function btnSend_Click(sender As Object, e As RoutedEventArgs) _
        As Task Handles btnSend.Click

        btnSend.IsEnabled = False
        Await Send_Email()
        btnSend.IsEnabled = True

    End Function

    Private Async Function Send_Email() As Task
        Dim Result As String = ""
        Try

            Dim oMail As New SmtpMail("TryIt")

            ' Set Yahoo email address
            oMail.From = New MailAddress("myid@yahoo.com")

            ' Add recipient email address, please change it to yours
            oMail.To.Add(New MailAddress("support@emailarchitect.net"))

            ' Set email subject
            oMail.Subject = "test email from VB XAML project"

            ' Set email body
            oMail.TextBody = "this is a test email sent from Windows Store App using Yahoo."

            ' Yahoo SMTP server address
            Dim oServer As New SmtpServer("smtp.mail.yahoo.com")

            ' User and password for Yahoo user authentication
            oServer.User = "myid@yahoo.com"
            oServer.Password = "testpassword"

            // set 587 port
            oServer.Port = 587

            ' detect SSL/TLS type automatically
            oServer.ConnectType = SmtpConnectType.ConnectSSLAuto

            Dim oSmtp As New SmtpClient()

            Await oSmtp.SendMailAsync(oServer, oMail)
            Result = "Email was sent successfully!"

        Catch ep As Exception
            Result = String.Format("Failed to send email with the following error: {0}", ep.Message)
        End Try

        ' Display Result by Diaglog box
        Dim dlg As New Windows.UI.Popups.MessageDialog(Result)
        Await dlg.ShowAsync()
    End Function
End Class