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Is there any way i can make a vb.net application that will allow me to retrieve the gmail inbox into my Application??
I can use gmail Smtp server to send the mails , thats not the problem , the problem i m facing is that i cant receive the mails from gmail to my application
GMail supports POP3. You'd program it just like any other POP3 application. I know because I have Thunderbird pulling my GMail box.
Well, that's all fine and dandy, but Thunderbird still isn't VB.NET.
I've only briefly looked into this, and I can't seem to find a POP3 namespace in .NET. I've found the SMTP namespace to send emails, but I haven't been able to find a way to read emails. That's not to say there isn't, jsut haven't really looked hard enough to find it.
I'm sure there's a way, it probably involves a third-party component of some kind.
-tg
No way! They have SMTP but no POP3?! I just kinda assumed if Microsoft built one into the framework, it would be natural to build the other.
I also figured the problem was Raziiq didn't know GMail has POP3 capability. A lot of webmail systems don't.
I think maybe this link could help you.
gmail also supports imap. You just have to enable it in your account.
Thanks for the replies.
ya i know that gmail has smtp server as stmp.gmail.com but problem is that i cant find any method to get the inbox of my Gmail into my windows Application.
I researched about it , there are so many 3rd party libraries around that if you buy can help , but what if i dont want to buy anything?? Is it that VB.net has no built in DLL's for this purpose?
Use the link Zero2Cool posted. It's a link to a home-made simple POP3 class. It's kinda ugly and could use a good cleanup, especially with how the errors are handled, but it works.
Im still looking all over the web for a working gmail code. I just want a simple one that downloads and allows option for deleting gmail emails (no sending). Ive managed to develop the one posted above a little by adding the ssl required by gmail. I keep on getting an error at runtime. As soon as I click the download button it says "IOException was Unhandled" on the line in bold below. Im relatively new to VB, and Ive been struggling to find a working
Quote:
Imports System
Imports System.Net.Sockets
Imports System.Text
Imports System.IO
Module POP3Message1
Dim Server As TcpClient
Dim NetStrm As NetworkStream
Dim RdStrm As StreamReader
Dim _Strm As Net.Security.SslStream
Public Function connect() As Integer
Dim POP3Account As String
POP3Account = "pop.gmail.com"
If POP3Account.Trim = "" Then Exit Function
Try
Server = New TcpClient(POP3Account.Trim, 995)
NetStrm = Server.GetStream
_Strm = New Net.Security.SslStream(Server.GetStream())
DirectCast(_Strm, Net.Security.SslStream).AuthenticateAsClient("pop.gmail.com")
RdStrm = New StreamReader(Server.GetStream)
Catch exc As Exception
MsgBox(exc.Message)
Exit Function
End Try
Dim user As String
user = "******@gmail.com"
Dim data As String = "USER " + user.Trim + vbCrLf
Dim szData() As Byte = System.Text.Encoding.ASCII.GetBytes(data.ToCharArray())
NetStrm.Write(szData, 0, szData.Length)
Dim POPResponse As String
POPResponse = RdStrm.ReadLine
If POPResponse.Substring(0, 4) = "-ERR" Then
MsgBox("Invalid user Name")
Return -1
End If
Dim password As String
password = "*******"
data = "PASS " & password & vbCrLf
szData = System.Text.Encoding.ASCII.GetBytes(data.ToCharArray())
NetStrm.Write(szData, 0, szData.Length)
POPResponse = RdStrm.ReadLine
If POPResponse.Substring(0, 4) = "-ERR" Then
MsgBox("Invalid Passwprd")
Return (-1)
End If
data = "STAT" + vbCrLf
szData = System.Text.Encoding.ASCII.GetBytes(data.ToCharArray())
NetStrm.Write(szData, 0, szData.Length)
POPResponse = RdStrm.ReadLine
If POPResponse.Substring(0, 4) = "-ERR" Then
MsgBox("could not log your in")
Return -1
End If
data = "Stat" + vbCrLf
szData = System.Text.Encoding.ASCII.GetBytes(data.ToCharArray())
NetStrm.Write(szData, 0, szData.Length)
POPResponse = RdStrm.ReadLine
If POPResponse.Substring(0, 4) = "-ERR" Then
MsgBox("could not log your in")
Return -1
End If
Dim parts() As String
parts = POPResponse.Split(" ")
Dim messages, totsize As Integer
'messages = parts(3)
messages = CInt(parts(1))
Return messages
End Function
Public Function DeleteMessage(ByVal msgIndex As Integer)
Dim data As String = "DELE " & msgIndex.ToString & vbCrLf
Dim SzData() As Byte = System.Text.Encoding.ASCII.GetBytes(data.ToCharArray())
NetStrm.Write(SzData, 0, SzData.Length)
Dim tmpString As String = RdStrm.ReadLine()
If tmpString.Substring(0, 4) = "-ERR" Then
MsgBox("Could Not Delete Message")
Return (-1)
Else
Return 11
End If
End Function
Public Function Quit()
Dim data As String = "Quit " & vbCrLf
Dim szData() As Byte = System.Text.Encoding.ASCII.GetBytes(data.ToCharArray())
NetStrm.Write(szData, 0, szData.Length)
Dim tmpString As String = RdStrm.ReadLine()
End Function
Public Structure Message
Dim _From As String
Dim _To As String
Dim _Date As String
Dim _Subject As String
Dim _CC As String
Dim _BCC As String
Dim _Body As String
Dim _Received As String
End Structure
Public Function CreateFromText(ByVal strMessage As String) As Message
Dim Mssg As New Message
Dim brkPos As Integer
Dim Header As String
Dim Headers() As String
Dim Body As String
Dim vField As Object
Dim strHeader As String
Dim HeaderName As String
Dim HeaderValue As String
brkPos = InStr(1, strMessage, vbCrLf & vbCrLf)
If brkPos Then
Header = strMessage.Substring(0, brkPos - 1)
Body = strMessage.Substring(brkPos + 1, _
strMessage.Length - Header.Length - 3)
Mssg._Body = Body
Else
Throw New Exception("Invalid Message Format")
Exit Function
End If
Headers = Split(Header, vbCrLf)
Dim _header As String
For Each _header In Headers
brkPos = _header.IndexOf(":")
If brkPos >= 0 Then
HeaderName = _header.Substring(0, brkPos)
Else
HeaderName = ""
End If
HeaderValue = _header.Substring(brkPos + 1)
Select Case HeaderName.ToLower
Case "received"
Mssg._Received = HeaderValue
Case "from"
Mssg._From = HeaderValue
Case "to"
Mssg._To = HeaderValue
Case "cc"
Mssg._CC = HeaderValue
Case "bcc"
Mssg._BCC = HeaderValue
Case "subject"
Mssg._Subject = HeaderValue
Case "date"
Mssg._Date = HeaderValue
End Select
Next
Return Mssg
End Function
Function GetMessage(ByVal msgindex As Integer) As String
Dim tmpString As String
Dim Data As String
Dim SzData() As Byte
Dim msg As String
Try
Data = "RETR " & msgindex.ToString & vbCrLf
SzData = System.Text.Encoding.ASCII.GetBytes(Data.ToCharArray())
NetStrm.Write(SzData, 0, SzData.Length)
tmpString = RdStrm.ReadLine()
If tmpString.Substring(0, 4) <> "-ERR" Then
While (tmpString <> ".")
msg = msg & tmpString & vbCrLf
tmpString = RdStrm.ReadLine
End While
End If
Catch exc As InvalidOperationException
MsgBox("Message Retrival Failed: " & vbCrLf & Err.ToString())
End Try
Return msg
End Function
End Module
Im using VB 2008 express if that helps.
Hi!
Have u got a solution of ur problame?
I try to insert a gmail mail downloader function in my app but iv got the same error message in the selected line:S
try putting those lines in a try/catch block and display the exception. actually... a LOT of that code should be put in Try/Catch blocks as I see a lot of potential parts that could return nothing or throw an error.
also, for ease of reading to other forum readers, put your code in vb.net tags. formats it correctly and is a bit easier on the eyes when looking at that much code.
Hey,
Seems like there are a few free components that will help you with this, rather than rolling your own:
http://www.readypop.com/
and:
http://sourceforge.net/projects/hpop/
To clarify, I haven't used either of these components, they were just found after a quick google.
Gary
thanks gep13 i ll try it!
No problem.
Let me know how you get on. Will be interesting to see if these components are any good.
Gary
they doesn work coz they havent got ssl function:/ ajj
Hey,
Let's clarify that. They do work, they support POP3, as request. You never said anything about supporting secure POP3.
Gary
could u write me how can i set the ssl??I have no idea:(
Hey,
Short answer is no. Off the top of my head I have no idea. It would take quite a bit of research. For something like this, I would be more inclined to go for a third party component, but that involves money.
There are a couple out there:
http://www.rebex.net/secure-mail.net/
http://www.dart.com/ptmlnet.aspx
At least that way you can get some support if things aren't working.
Gary
i found something:
http://www.codeproject.com/KB/IP/Pop3MailClient.aspx
i imported the net.dll from the zip, but i dont know how can i see the mail with this...
somebody have a solution for this problame but nobady write me answer on this link:
http://www.vbforums.com/showthread.p...89#post3696789
Hey,
Did you read the comments on the CodeProject link:
Have you tried using the source code from the CodeProject site directly? Does it work? I would start with getting that to work first, then start putting it into your own code.Quote:
I had a good experience using Gmail, although I encountered 2 flaws:
- Gmail shows maximal 250-260 mails in a mailbox, even if there are thousands. Gmail shows the oldest emails. As soon some emails get deleted (after disconnect), newer emails get available.
- The response of Gmail is sometimes slow and sometimes there is just no response.
Gary
i cant open it coz it coding in vb 2005 and i have now vb 2008:/
Hey,
Visual Studio 2008 should be able to convert it for you. Rather than open the solution file directly, just open up the project.
Gary
here is some other solution but doesnt work for me:
Re: [2005] Reading email
Quote:
Originally Posted by keon2005
Does anyone here know how to do so. Seem to be tonnes of example on how to send but none of them is about reading email that is working properly.
I need to read the email from the mail server that is in my intranet from my application server. Any expert here know how to do that?
Goto
http://www.codeproject.com/KB/IP/NetPopMimeClient.aspx
At the very top of the article it says "Download Sourcecode"
Save the sourcode to your desktop or where ever
There is a folder within the zip file that is called NetPopMimeClient go in there, then go into the bin folder. You need to add Net.dll which is in that folder as a reference to your project then you can call any of the functions within it.
Example of usage.
Code:
Dim pop3 As Net.Mail.Pop3Client = New Net.Mail.Pop3Client("My hostname", "myusername", "mypassword")
Hey,
You seem to be jumping around quite a bit, and it is getting difficult to follow. Stick with one thing just now, and try and get it working, rather than trying lots of different ones.
Gary
yeah i try to open it but vb 2008 give back error:/ so vb 2008 cant open it
What error did you get?
I have just opened the solution in Visual Studio 2008 and it worked fine. The project conversion wizard popped up, and once completed, the solution opened up.
Gary
i have visual Basic 2008 not vs 2008.
it write me:the project file was unloaded :S
Hey,
Ok, so now this is making more sense. The project is written in C#, so Visual Basic Express is never going to be able to open it.
Can you also install C# Express Edition? That will let you open the application, and from there you can start to convert it over to VB.
Gary
ok how can i do it??XDXD
How can you do what? Install C# Express Edition?
Download it from here:
http://www.microsoft.com/express/vcsharp/
And install it. Open up the project, and away you go.
Gary
ok i install it and i can open the project with it but how can i import this project to my visual basic project?:O
You can either convert the program to VB.net, or if it's a DLL, just compile it and add it as a reference to your program.
i try to open it in vb but it cant do it:s
You're clearly a newbie at this, so I'll give you a hand. Visual Studio won't convert the C# Code to VB.net for you. An Online Translator will however. Use this to translate the code.
luke,
Now that you have installed C#, you should be able to open the C# project in there (it may ask you to do a conversion, but that you run through without any problems). When I say conversion, I mean a C# conversion between Version 2005 and 2008, not between any of the languages.
I was suggesting that you take a look at the C# code, look at what it's doing, identify the classes that it is using, and then, if you choose to, convert this over to VB. As formlesstree4 mentioned, there are some online convertors that will attempt to do this for you, but they are not always 100% successful. I would give it smaller chunks of code at a time, that way it should be able to have a stab at it.
If you don't want to go down this route, then you can always change the C# project to be a class library (DLL), and then simply reference this DLL in your VB project.
Ask if there is anything you are not sure about.
Gary
ohh many thanks for everyone!!!
Now its working working.I can download the mails from gmail.I try to post the code here but its too long:/
And i have a new problame.
How can i set a proxy for a pop3 mailserver??
Could anybody tell me how could i find it that which webclient is used by the pop3 server???
I try to set proxy with this code but nothing happened,any idea??
vb Code:
the "connect" part of the pop3 mail client code:
Code:Public Sub Connect()
If m_pop3ConnectionState <> Pop3ConnectionStateEnum.Disconnected AndAlso m_pop3ConnectionState <> Pop3ConnectionStateEnum.Closed AndAlso Not isTimeoutReconnect Then
CallWarning("connect", "", "Connect command received, but connection state is: " & m_pop3ConnectionState.ToString())
Else
'establish TCP connection
Try
CallTrace(" Connect at port {0}", m_port)
serverTcpConnection = New TcpClient(m_popServer, m_port)
Catch ex As Exception
Throw New Pop3Exception((("Connection to server " & m_popServer & ", port ") + m_port & " failed." & vbLf & "Runtime Error: ") + ex.ToString())
End Try
If m_useSSL Then
'get SSL stream
Try
CallTrace(" Get SSL connection")
pop3Stream = New SslStream(serverTcpConnection.GetStream(), False)
pop3Stream.ReadTimeout = m_readTimeout
Catch ex As Exception
Throw New Pop3Exception(("Server " & m_popServer & " found, but cannot get SSL data stream." & vbLf & "Runtime Error: ") + ex.ToString())
End Try
'perform SSL authentication
Try
CallTrace(" Get SSL authentication")
DirectCast(pop3Stream, SslStream).AuthenticateAsClient(m_popServer)
Catch ex As Exception
Throw New Pop3Exception(("Server " & m_popServer & " found, but problem with SSL Authentication." & vbLf & "Runtime Error: ") + ex.ToString())
End Try
Else
'create a stream to POP3 server without using SSL
Try
CallTrace(" Get connection without SSL")
pop3Stream = serverTcpConnection.GetStream()
pop3Stream.ReadTimeout = m_readTimeout
Catch ex As Exception
Throw New Pop3Exception(("Server " & m_popServer & " found, but cannot get data stream (without SSL)." & vbLf & "Runtime Error: ") + ex.ToString())
End Try
End If
'get stream for reading from pop server
'POP3 allows only US-ASCII. The message will be translated in the proper encoding in a later step
Try
pop3StreamReader = New StreamReader(pop3Stream, Encoding.ASCII)
Catch ex As Exception
If m_useSSL Then
Throw New Pop3Exception(("Server " & m_popServer & " found, but cannot read from SSL stream." & vbLf & "Runtime Error: ") + ex.ToString())
Else
Throw New Pop3Exception(("Server " & m_popServer & " found, but cannot read from stream (without SSL)." & vbLf & "Runtime Error: ") + ex.ToString())
End If
End Try
'ready for authorisation
Dim response As String
If Not readSingleLine(response) Then
Throw New Pop3Exception(("Server " & m_popServer & " not ready to start AUTHORIZATION." & vbLf & "Message: ") + response)
End If
setPop3ConnectionState(Pop3ConnectionStateEnum.Authorization)
'send user name
If Not executeCommand("USER " & m_username, response) Then
Throw New Pop3Exception((("Server " & m_popServer & " doesn't accept username '") + m_username & "'." & vbLf & "Message: ") + response)
End If
'send password
If Not executeCommand("PASS " & m_password, response) Then
Throw New Pop3Exception(((("Server " & m_popServer & " doesn't accept password '") + m_password & "' for user '") + m_username & "'." & vbLf & "Message: ") + response)
End If
setPop3ConnectionState(Pop3ConnectionStateEnum.Connected)
End If
End Sub
Hi luke could you please post the full project source in zip or rar format I am new to this also I just finished making a mail sender that works with gmail, yahoo mail, msn, and aol mail and would now like to make a email reader to go with it. I will post my project for all the people here also here:
http://www.mediafire.com/?1x3qnbs1m2bywfq
Plus here is the code for people who do not wish to download:
Form1 Login form (Just takes login credentials and stores to global variables)
Form2 (Actual Email Sender) Yahoo does not work with SSL so if else statement was used )Code:Imports System.Net.Mail
Public Class Form1
'Declares variables needed to store unique email details
Public Shared mail As String
Public Shared password As String
Public Shared smtp As String
Public Shared send_to As String
Public Shared SMTPServer As New SmtpClient(Form1.smtp)
Private Sub btnGmailLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGmailLogin.Click
'Allocate the details from text boxes to the variables called by
'the meat of the program (Vorfins mail source)
mail = GmailUser.Text
password = GmailPass.Text
smtp = ("smtp.gmail.com")
Me.Hide()
Form2.Show()
End Sub
Private Sub btnMsnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnMsnLogin.Click
'Allocate the details from text boxes to the variables called by
'the meat of the program (Vorfins mail source)
mail = MsnUser.Text
password = MsnPass.Text
smtp = ("smtp.live.com")
Me.Hide()
Form2.Show()
End Sub
Private Sub btnYahooLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnYahooLogin.Click
'Allocate the details from text boxes to the variables called by
'the meat of the program (Vorfins mail source)
mail = YahooUser.Text
password = YahooPass.Text
smtp = ("smtp.mail.yahoo.com")
Form1.SMTPServer.EnableSsl = False
Me.Hide()
Form2.Show()
End Sub
Private Sub btnAimLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAimLogin.Click
'Allocate the details from text boxes to the variables called by
'the meat of the program (Vorfins mail source)
mail = AimUser.Text
password = AimPass.Text
smtp = ("smtp.aol.com")
Me.Hide()
Form2.Show()
End Sub
End Class
I am also a noob programmer I got the first tutorial from here: http://leetcoders.org/showthread.php?tid=1187Code:Imports System.Net.Mail
Public Class Form2
Private Sub btnSend_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSend.Click
If Form1.smtp = ("smtp.mail.yahoo.com") Then
'Vorfins mail sender source.
'Inputs all appropriate information for mail import to send the email.
Dim MyMailMessage As New MailMessage
Try
MyMailMessage.From = New MailAddress(Form1.mail)
MyMailMessage.To.Add(txtSendTo.Text)
MyMailMessage.Subject = (txtSubject.Text)
MyMailMessage.Body = (txtBody.Text)
Dim SMTPServer As New SmtpClient(Form1.smtp)
SMTPServer.Port = 587
SMTPServer.Credentials = New System.Net.NetworkCredential(Form1.mail, Form1.password)
SMTPServer.EnableSsl = False
SMTPServer.Send(MyMailMessage)
Catch ex As Exception
MsgBox(ex.Message)
End Try
Else
'declare variable to hold sender email
'assign textbox for "Send to" to this variable
Form1.send_to = txtSendTo.Text
'Vorfins mail sender source.
'Inputs all appropriate information for mail import to send the email.
Dim MyMailMessage As New MailMessage
Try
MyMailMessage.From = New MailAddress(Form1.mail)
MyMailMessage.To.Add(txtSendTo.Text)
MyMailMessage.Subject = (txtSubject.Text)
MyMailMessage.Body = (txtBody.Text)
Dim SMTPServer As New SmtpClient(Form1.smtp)
SMTPServer.Port = 587
SMTPServer.Credentials = New System.Net.NetworkCredential(Form1.mail, Form1.password)
SMTPServer.EnableSsl = True
SMTPServer.Send(MyMailMessage)
Catch ex As Exception
MsgBox(ex.Message)
End Try
End If
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'This tells the program to go back to the login page for when the
'user wants to send a mail from a different account.
Me.Hide()
Form1.Show()
End Sub
End Class
and found it to be really interesting so added on it. As far as i am aware there are no multi email platform sources and tuts around so this should at least be a little bit helpful. PLEASE POST YOUR SOURCE LUKE!!! Lol:wave:
If you got the DLL working can you send it along so others can try it out? I'm trying to connect gmail as well.
here are some solutionsQuote:
Originally Posted by martind1
http://www.techsupportforum.com/foru...et-406370.html
http://sourceforge.net/projects/hpop/
This is a full example of how to receive E-mails from mail servers using POP3 commands and no 3rd parties ....
http://evry1falls.freevar.com/VBNet/...vbnetpop3.html
Hope this is what you are looking for ...
...
Any updates of your problem coz I'm having the same one ....