How set gmil mails automate with vba

A very specific and interesting question!

To automate sending GMails using VBA, you'll need to use the MSXML2.XMLHTTP object to send an HTTP request to the Gmail SMTP server. Here's a step-by-step guide to help you achieve this:

Prerequisites:

  1. You have a Gmail account with 2-Step Verification (2SV) disabled.
  2. You have the MSXML2.XMLHTTP object installed on your system (it's usually included with Office installations).
  3. You have a VBA project set up in your Excel workbook.

Step 1: Set up your Gmail account

  1. Go to your Gmail account settings and enable "Less secure app access" (this is required for VBA automation).
  2. Note down your Gmail username and password.

Step 2: Create a VBA function to send an email

Create a new module in your VBA project and add the following code:

Sub SendGmail()
    Dim xmlHttp As Object
    Set xmlHttp = CreateObject("MSXML2.XMLHTTP")

    ' Set your Gmail credentials
    Dim username As String: username = "[email protected]"
    Dim password As String: password = "your_password"

    ' Set the email details
    Dim toAddress As String: toAddress = "[email protected]"
    Dim subject As String: subject = "Test Email from VBA"
    Dim body As String: body = "This is a test email sent from VBA."

    ' Set the SMTP server and port
    Dim smtpServer As String: smtpServer = "smtp.gmail.com"
    Dim smtpPort As Integer: smtpPort = 587

    ' Set the authentication headers
    xmlHttp.Open "POST", "https://" & smtpServer & ":" & smtpPort & "/smtp", False
    xmlHttp.setRequestHeader "Authorization", "Basic " & EncodeBase64(username & ":" & password)
    xmlHttp.setRequestHeader "Content-Type", "text/plain"

    ' Set the email body
    xmlHttp.send body

    ' Check if the email was sent successfully
    If xmlHttp.Status = 250 Then
        MsgBox "Email sent successfully!"
    Else
        MsgBox "Error sending email: " & xmlHttp.Status
    End If

    Set xmlHttp = Nothing
End Sub

' Helper function to encode the username and password
Function EncodeBase64(str As String) As String
    Dim bytes() As Byte
    bytes = StrConv(str, vbFromUnicode)
    EncodeBase64 = ConvertToBase64(bytes)
End Function

' Helper function to convert bytes to Base64
Function ConvertToBase64(bytes() As Byte) As String
    Dim base64 As String
    Dim i As Integer
    For i = 0 To UBound(bytes)
        base64 = base64 & Chr$(bytes(i) / 64) & Chr$(bytes(i) Mod 64)
    Next i
    ConvertToBase64 = base64
End Function

Step 3: Call the VBA function

To send an email, simply call the SendGmail function from your VBA code. For example:

Sub TestEmail()
    SendGmail
End Sub

Note: This code uses the MSXML2.XMLHTTP object to send an HTTP request to the Gmail SMTP server. This is a simple and straightforward approach, but it may not be as secure as using a dedicated email library or API.

Security considerations:

  1. Make sure to store your Gmail credentials securely, as they will be stored in plain text in your VBA code.
  2. Be aware that using VBA to automate email sending may be against Gmail's terms of service.
  3. Consider using a more secure approach, such as using OAuth 2.0 or a dedicated email library, to authenticate with Gmail.