[2005] Sending an email using Gmail?

Hello everyone,

It has been a while since i posted. Am now starting my VS2005 shoes ;)

I would like to send an email using VS2005 via Gmail.

I know that it is possible, but am puzzled on how to establish a secure SSL connection.

Below is extracted from the Gmail help site

To configure your client manually:

Open Outlook or Outlook Express.
Click the 'Tools' menu, and select 'Accounts...'
Click 'Add,' and then click 'Mail...'
Enter your name in the 'Display name:' field, and click 'Next.'
Enter your full Google Mail email address ([email protected]) in the 'Email address:' field, and click 'Next.'
Enter 'pop.googlemail.com' in the 'Incoming mail (POP3, IMAP or HTTP) server:' field. Enter 'smtp.googlemail.com' in the 'Outgoing mail (SMTP) server:' field.
Click 'Next.'
Enter your Google Mail username (including '@googlemail.com') in the 'Account name:' field. Enter your Google Mail password in the 'Password:' field, and click 'Next.'
Click 'Finish.'
Highlight 'pop.googlemail.com' under 'Account,' and click 'Properties.'
Click the 'Advanced' tab.
Tick the box next to 'This server requires a secure connection (SSL)' under 'Outgoing Mail (SMTP).'
Enter '465' in the 'Outgoing mail (SMTP):' field.
Tick the box next to 'This server requires a secure connection (SSL)' under 'Incoming mail (POP3).' The port will change to 995.
*The order of 'Outgoing' and 'Incoming' mail server fields varies by version. Make sure you enter the correct information in each field.
Click the 'Servers' tab, and tick the box next to 'My server requires authentication.'
Click 'OK.'
Congratulations!

I don't have 2005, but I'm sure if you look into some of the properties of the MailMessage object and SmtpClient object you will find your answers. He is some basic code I found in anohter thread.

VB Code:

Dim Mail As New MailMessage
 
        With Mail
            .To.Add("[email protected]")
            .From = New MailAddress("[email protected]")
            .Subject = "Some Subject"
            .Body = "Some Body"
        End With
 
        Dim SMTP As New SmtpClient("SMTP.SOMESERVER.NET")
 
        SMTP.Send(Mail)
 
        ' Cleanup
        SMTP = Nothing
        Mail.Dispose()

Ya...i know how to do that....just need to have a secure ssl connection

Here is a link to some CDO configurations that worked for me in .net 1.1 I'm not sure if it has changed in 2.0. I did not use SSL, but see that it has item property. See this link http://msdn.microsoft.com/library/de...22bb7ce17c.asp. Just look on the left for a smtpusessl field and add it. I think you need to change the port too.

VB Code:

Dim CurrentMessage As New System.Web.Mail.MailMessage
            Dim sSmtpMail As System.Web.Mail.SmtpMail
            CurrentMessage.To = "[email protected]"
            CurrentMessage.Cc = "[email protected]"
            CurrentMessage.From = "[email protected]"
            CurrentMessage.Subject = "Hello World"
            CurrentMessage.Body = "Go to he doulbe L."
            If File.Exists("F:\RepReports\S" & sPR.Trim & ".pdf") Then
                Dim aAttachment As New System.Web.Mail.MailAttachment("F:\RepReports\S" & sPR.Trim & ".pdf", Mail.MailEncoding.Base64)
                CurrentMessage.Attachments.Add(aAttachment)
                attached = attached + " Shop Orders  "
            End If
           
            CurrentMessage.Fields("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "smtp.ameritech.yahoo.com"
            CurrentMessage.Fields("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25
            CurrentMessage.Fields("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
            CurrentMessage.Fields("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate") = 1
            CurrentMessage.Fields("http://schemas.microsoft.com/cdo/configuration/sendusername") = "[email protected]"
            CurrentMessage.Fields("http://schemas.microsoft.com/cdo/configuration/sendpassword") = "xxxxx"
            sSmtpMail.SmtpServer = "smtp.ameritech.yahoo.com"
            sSmtpMail.Send(CurrentMessage)
            AddToList(sPR.Trim, "E-Mail Sent")

OK....

i have managed to get this code from www.systemwebmail.net.

VB Code:

'create the mail message
        Dim mail As New MailMessage()
 
        'set the addresses
        mail.From = New MailAddress("[email protected]")
        mail.To.Add("[email protected]")
 
        'set the content
        mail.Subject = "This is an email"
        mail.Body = "this is the body content of the email."
 
        'send the message
        Dim smtp As New SmtpClient("smtp.mail.yahoo.com", 587)
 
 
        'to authenticate we set the username and password properites on the SmtpClient
        smtp.Credentials = New Net.NetworkCredential("username", "Password")
        smtp.Send(mail)

But it still does not work. How can i tell if my ISP is blocking the emails?

I am currently in china and it could be because of the restrictive ISP's that is why i cant connect to either yahoo or gmail smtp servers.

The yahoo servers require me to have a secure authentication apparently. Here is the error:

Quote:

---

The SMTP server requires a secure connection or the client was not authenticated. The server response was: authentication required - for help go to http://help.yahoo.com/help/us/mail/pop/pop-11.html

---

Anyone have any ideas?

If i put

VB Code:

smtp.EnableSsl = True

I get this error

Quote:

---

Server does not support secure connections.

---

What the heck is going on?

Cheers in advance!

Apparently, yahoo wants money if you want to use their smtp servers...

So i tried with Gmail, but no luck there either

take a look at this for reference. That way you dont need an outside smtp server to send mail:

http://www.vbdotnetheaven.com/Code/M...testserver.asp

Nah, it doesn't work...

It still requires an external SMTP server to relay email messages to the outside work

Have you tried Free SMTP server?

http://www.softstack.com/freesmtp.html

yup.....it has sorted my problem..

how can i get my program to run it? (and then minimise it...)

Ok....i found an article on the net on how to get GMail to work with .Net 2.0

I will post my code shortly. It is excellent! No need for Freesmtp...

hi every one I don't know why some one said

Quote:

---

Apparently, yahoo wants money if you want to use their smtp servers.

---

but this code works perfectly

VB Code:

Dim username As String = us.Text
        Dim domin As String
        Dim body As String = bo.Text
        Dim tooo As String = too.Text
        Dim subject As String = subj.Text
        Dim sender1 As String = se.Text
 
        Select Case ListBox1.SelectedIndex
            Case 0
                domin = "gmail"
            Case 1
                domin = "hotmail"
            Case 2
                domin = "msn"
            Case 3
                domin = "yahoo"
        End Select
        If domin = "" Then
            domin = dom.Text
        End If
        If domin = "" Then
            MsgBox("You must select the website that you have ur E-mail id ", MsgBoxStyle.Information)
        End If
 
        Try
            Dim message1, Conf, Fields, acsessing, sendemailgmail, dom
            dom = "smtp." & domin & ".com"
            message1 = CreateObject("CDO.Message")
            Conf = CreateObject("CDO.Configuration")
            Fields = Conf.Fields
 
            acsessing = "http://schemas.microsoft.com/cdo/configuration/"
            Fields.Item(acsessing & "sendusing") = 2
            Fields.Item(acsessing & "smtpserver") = dom
            Fields.Item(acsessing & "smtpserverport") = 465
            Fields.Item(acsessing & "smtpauthenticate") = 1
            Fields.Item(acsessing & "sendusername") = username
            Fields.Item(acsessing & "sendpassword") = ps.Text
            Fields.Item(acsessing & "smtpusessl") = 1
            Fields.Update()
 
            message1.To = tooo
            message1.From = username
            message1.Subject = subject
            message1.HTMLBody = body
            message1.Sender = sender1
            message1.ReplyTo = username
            message1.Configuration = Conf
            ToolStripStatusLabel1.Text = "Message sending please wait"
            sendemailgmail = message1.Send
            MsgBox("  Your mail has been successfully sent", MsgBoxStyle.Information)
 
            us.Text = ""
 
            bo.Text = ""
            too.Text = ""
            subj.Text = ""
            se.Text = ""
        Catch ex As Exception
 
            MsgBox(ex.Message, MsgBoxStyle.Critical)
        End Try

VB Code:

Imports System.Net.Mail
Imports System.Net.Security.AuthenticatedStream
Imports System.Net.Mime
Imports System.Threading
Imports System.Text
 
Public Class class_EMAIL
 
 
    Private Shared mailSent As Boolean = False
 
    Friend EmailSettings As SettingsStruct
 
 
    Friend Structure SettingsStruct
        Friend Recipent() As String
        Friend From As String
        Friend Subject As String
        Friend Body As String
        Friend Attachments() As String
    End Structure
 
 
    Friend formy As Helper.frmMain
    Dim wait As New Helper.frmWait
 
    Sub Authenticate()
        wait.Show(formy)
        Dim msg As New System.Net.Mail.MailMessage()
        msg.From = New MailAddress(EmailSettings.From)
        'this is the recepients
        Dim i As Integer
        For i = 0 To EmailSettings.Recipent.Length - 1
            msg.To.Add(EmailSettings.Recipent(i).ToString)
        Next
        'set the content
        msg.Subject = EmailSettings.Subject & Date.Now.ToShortDateString & " " & Date.Now.ToShortTimeString
        msg.SubjectEncoding = System.Text.Encoding.UTF8
        msg.Body = EmailSettings.Body  'Me.txtEmailBody.Text
        msg.BodyEncoding = System.Text.Encoding.UTF8
        msg.IsBodyHtml = False
        msg.Priority = MailPriority.High
 
 
        'add the creddentials
        Dim client As New SmtpClient()
        client.Credentials = New System.Net.NetworkCredential("[email protected]", "PASSWORD")
        client.Port = 587
        client.Host = "smtp.gmail.com"
        client.EnableSsl = True
        AddHandler client.SendCompleted, AddressOf client_SendCompleted
        Dim userState As Object = msg
        Try
            'you can also call client.Send(msg)
            client.SendAsync(msg, userState)
        Catch ex As System.Net.Mail.SmtpException
            MessageBox.Show(ex.Message, "Send Mail Error")
        End Try
 
    End Sub 'SendMail
    Sub client_SendCompleted(ByVal sender As Object, ByVal e As System.ComponentModel.AsyncCompletedEventArgs)
        Dim mail As MailMessage = CType(e.UserState, MailMessage)
        Dim subject As String = mail.Subject
 
        If e.Cancelled Then
            Dim cancelled As String = String.Format("[{0}] Send canceled.", subject)
            MessageBox.Show(cancelled)
            wait.Close()
        End If
        If Not (e.Error Is Nothing) Then
            Dim [error] As String = [String].Format("[{0}] {1}", subject, e.Error.ToString())
            MessageBox.Show([error])
            wait.Close()
        Else
            MessageBox.Show("Message sent.")
            wait.Close()
        End If
        mailSent = True
    End Sub 'client_SendCompleted
End Class

Then to call onto this class,

VB Code:

Private Sub btnEmail_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEmail.Click
        Dim cls As New class_EMAIL
        'We need to find out who r we sending to.
cls.EmailSettings.Recipent= "[email protected]"
'and so on.....
 
        cls.Authenticate()
    End Sub

been looking for this code for a long time :D

but when i copy/pasty this code i get an error that:
Type 'Helper.frmMain' is not defined.
Type 'Helper.frmwait' is not defined.

How do i define these

hope someone can help, happy new year ;)

well, that is because you do not have those forms in your project. Add a form to your project called frmMain, and one called frmWait and those reference errors will disappear.

nope that doesnt work, any other suggestions???

VB Code:

Friend formy As Helper.frmMain
    Dim wait As New Helper.frmWait

it is these two lines of code that fails :(

no one :D

i really need your help here :)

Code:

---

  1.
      Private Sub btnEmail_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEmail.Click
  2.
              Dim cls As New class_EMAIL
  3.
              'We need to find out who r we sending to.
  4.
      cls.EmailSettings.Recipent= "[email protected]"
  5.
      'and so on.....
  6.
     
  7.
              cls.Authenticate()
  8.
          End Sub

---

I'm getting this error for my e-mail recipient.

Error 1 Value of type 'String' cannot be converted to '1-dimensional array of String'.

I'm not sure what this means other than this is an array and it doesn't like the string that i have.
When I do it this way which i don't know why i would:

cls.EmailSettings.Recipent(1)= "[email protected]"

The error goes away but i get a null reference exception or something.

Object reference not set to an instance of an object.

Anyone help me out.?

Sorry I found it. I know what it was but i couldn't find it in the code.

The variable had () at the end. Probably from cutting and pasting.

Sorry.

some info i copied from another site

1. Check these important settings:
a. My outgoing server requires authentication (or Password or
Challenge/Response for iMac)
b. Change the server timeout time from 1 min to 5 min
c. Uncheck leave a copy of email on server.
d. Try alternate SMTP port number: 25, 465, or 587.
e. Change the outgoing server to smtp.googlemail.com

2. Do you have a firewall blocking the connection? Email virus
checking? Popup Blocker? Temporarily disable them.


3. Update Outlook to latest configuration. Outlook 2000 should have
SP3. Outlook 2002 should have SP3. Outlook 2003 should have SP2.


4. Use the Captcha verification to unlock your account
https://www.google.com/accounts/DisplayUnlockCaptcha


5. See if the solutions here will help
http://www.slipstick.com/problems/nosend.htm


6. You ISP may be blocking Gmail server. Use your ISP SMTP server.

I got it to work with gmail but I had to run the unlock programme first. What does that actually do?

I used the settings from this link:

http://www.emailaddressmanager.com/t...-settings.html

It appears that gmail ignores the specified "From Address" and replaces it with my gmail address.

If a user sends an email, I don't want replies to come to me - I want them to go back to the user.

Is there any way of changing this behaviour?

It works perfectly using Yahoo and the following settings:

smtp.mail.yahoo.com
port 25