Xojo Plugin 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. Xojo Plugin

Dim success As Boolean
success = False

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

Dim imap As New Chilkat.Imap

//  Connect to an IMAP server.
//  Use TLS
imap.Ssl = True
imap.Port = 993
success = imap.Connect("imap.example.com")
If (success = False) Then
    System.DebugLog(imap.LastErrorText)
    Return
End If

//  Login
success = imap.Login("****","****")
If (success = False) Then
    System.DebugLog(imap.LastErrorText)
    Return
End If

//  Select an IMAP mailbox
success = imap.SelectMailbox("Inbox")
If (success = False) Then
    System.DebugLog(imap.LastErrorText)
    Return
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 Boolean
fetchUids = True
Dim messageSet As New Chilkat.MessageSet
success = imap.QueryMbx("ALL",fetchUids,messageSet)
If (success = False) Then
    System.DebugLog(imap.LastErrorText)
    Return
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 Chilkat.EmailBundle
Dim headersOnly As Boolean
headersOnly = True
success = imap.FetchMsgSet(headersOnly,messageSet,bundle)
If (success = False) Then
    System.DebugLog(imap.LastErrorText)
    Return
End If

//  Loop over the email objects and display information about each:
Dim email As New Chilkat.Email
Dim i As Int32
i = 0
Dim j As Int32
j = 0
Dim numEmails As Int32
numEmails = bundle.MessageCount
While i < numEmails
    success = bundle.EmailAt(i,email)

    //  Display the From and Subject
    System.DebugLog(email.From)
    System.DebugLog(email.Subject)

    //  Display the recipients:
    j = 0
    While j < email.NumTo
        System.DebugLog("TO: " + email.GetToName(j) + ", " + email.GetToAddr(j))
        j = j + 1
    Wend
    j = 0
    While j < email.NumCC
        System.DebugLog("CC: " + email.GetCcName(j) + ", " + email.GetCcAddr(j))
        j = j + 1
    Wend

    //  Show the total size of the email, including body and attachments:
    System.DebugLog(Str(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 Int32
    numAttach = imap.GetMailNumAttach(email)
    j = 0
    While j < numAttach
        System.DebugLog(imap.GetMailAttachFilename(email,j))
        Dim attachSize As Int32
        attachSize = imap.GetMailAttachSize(email,j)
        System.DebugLog("    size = " + Str(attachSize) + " bytes")
        j = j + 1
    Wend

    System.DebugLog("--")

    i = i + 1
Wend

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