Visual Basic 6.0 Requires Chilkat v11.0.0+

Imap.GetMailSize vs Email.Size

Shows how to get the total size of an email, as well as the sizes of the attachments. This can be done when either full-emails or headers-only are downloaded. Visual Basic 6.0

Dim success As Long
success = 0

'  This example assumes the Chilkat API to have been previously unlocked.
'  See Global Unlock Sample for sample code.

Dim imap As New ChilkatImap

'  Connect to an IMAP server.
'  Use TLS
imap.Ssl = 1
imap.Port = 993
success = imap.Connect("imap.example.com")
If (success = 0) Then
    Debug.Print imap.LastErrorText
    Exit Sub
End If

'  Login
success = imap.Login("****","****")
If (success = 0) Then
    Debug.Print imap.LastErrorText
    Exit Sub
End If

'  Select an IMAP mailbox
success = imap.SelectMailbox("Inbox")
If (success = 0) Then
    Debug.Print imap.LastErrorText
    Exit Sub
End If

'  Get the message IDs of all the emails in the mailbox
'  We can choose to fetch UIDs or sequence numbers.
Dim fetchUids As Long
fetchUids = 1
Dim messageSet As New MessageSet
success = imap.QueryMbx("ALL",fetchUids,messageSet)
If (success = 0) Then
    Debug.Print imap.LastErrorText
    Exit Sub
End If

'  When downloading headers, each email object contains
'  (obviously) the headers, but the body will be missing.
'  Attachments will not be included.  However, it is
'  possible to get information about the attachments
'  as well as the complete size of the email.
Dim bundle As New ChilkatEmailBundle
Dim headersOnly As Long
headersOnly = 1
success = imap.FetchMsgSet(headersOnly,messageSet,bundle)
If (success = 0) Then
    Debug.Print imap.LastErrorText
    Exit Sub
End If

'  Loop over the email objects and display information about each:
Dim email As New ChilkatEmail
Dim i As Long
i = 0
Dim j As Long
j = 0
Dim numEmails As Long
numEmails = bundle.MessageCount
Do While i < numEmails
    success = bundle.EmailAt(i,email)

    '  Display the From and Subject
    Debug.Print email.From
    Debug.Print email.Subject

    '  Display the recipients:
    j = 0
    Do While j < email.NumTo
        Debug.Print "TO: " & email.GetToName(j) & ", " & email.GetToAddr(j)
        j = j + 1
    Loop
    j = 0
    Do While j < email.NumCC
        Debug.Print "CC: " & email.GetCcName(j) & ", " & email.GetCcAddr(j)
        j = j + 1
    Loop

    '  Show the total size of the email, including body and attachments:
    Debug.Print email.Size

    '  When a full email is downloaded, we would use the
    '  email.NumAttachments property in conjunction with the
    '  email.GetMailAttach* methods.
    '  However, when an email object contains only the header,
    '  we need to access the attachment info differently:
    Dim numAttach As Long
    numAttach = imap.GetMailNumAttach(email)
    j = 0
    Do While j < numAttach
        Debug.Print imap.GetMailAttachFilename(email,j)
        Dim attachSize As Long
        attachSize = imap.GetMailAttachSize(email,j)
        Debug.Print "    size = " & attachSize & " bytes"
        j = j + 1
    Loop

    Debug.Print "--"

    i = i + 1
Loop

'  Disconnect from the IMAP server.
success = imap.Disconnect()