PowerBuilder

Delete Email Individually (One at a time) from an IMAP Mailbox

Downloads email from an IMAP mailbox and deletes emails individually (one by one). PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Imap
integer li_FetchUids
oleobject loo_MessageSet
oleobject loo_Bundle
integer li_HeadersOnly
oleobject loo_Email
integer i
integer li_NumEmails

li_Success = 0

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

loo_Imap = create oleobject
li_rc = loo_Imap.ConnectToNewObject("Chilkat.Imap")
if li_rc < 0 then
    destroy loo_Imap
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// Connect to an IMAP server.
// Use TLS
loo_Imap.Ssl = 1
loo_Imap.Port = 993
li_Success = loo_Imap.Connect("imap.example.com")
if li_Success = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    return
end if

// Login
li_Success = loo_Imap.Login("myLogin","myPassword")
if li_Success = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    return
end if

// Select an IMAP mailbox
li_Success = loo_Imap.SelectMailbox("Inbox")
if li_Success = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    return
end if

// We can choose to fetch UIDs or sequence numbers.
li_FetchUids = 1

// Get the message IDs of all the emails in the mailbox
loo_MessageSet = create oleobject
li_rc = loo_MessageSet.ConnectToNewObject("Chilkat.MessageSet")

li_Success = loo_Imap.QueryMbx("ALL",li_FetchUids,loo_MessageSet)
if li_Success = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    destroy loo_MessageSet
    return
end if

// Fetch the emails into a bundle object:
loo_Bundle = create oleobject
li_rc = loo_Bundle.ConnectToNewObject("Chilkat.EmailBundle")

li_HeadersOnly = 0
li_Success = loo_Imap.FetchMsgSet(li_HeadersOnly,loo_MessageSet,loo_Bundle)
if li_Success = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    destroy loo_MessageSet
    destroy loo_Bundle
    return
end if

// To mark a complete set of emails for deletion, call SetFlags:
li_Success = loo_Imap.SetFlags(loo_MessageSet,"Deleted",1)
if li_Success = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    destroy loo_MessageSet
    destroy loo_Bundle
    return
end if

// Messages can also be marked for deletion individually:
// Loop over the bundle and mark each message for deletion.
loo_Email = create oleobject
li_rc = loo_Email.ConnectToNewObject("Chilkat.Email")

i = 0
li_NumEmails = loo_Bundle.MessageCount
do while i < li_NumEmails
    loo_Bundle.EmailAt(i,loo_Email)

    Write-Debug loo_Email.From
    Write-Debug loo_Email.Subject

    // To delete this email, set the "Deleted" flag to 1.
    // The email is not actually deleted until Expunge or
    // ExpungeAndClose is called.
    li_Success = loo_Imap.SetMailFlag(loo_Email,"Deleted",1)
    if li_Success = 0 then
        Write-Debug loo_Imap.LastErrorText
        destroy loo_Imap
        destroy loo_MessageSet
        destroy loo_Bundle
        destroy loo_Email
        return
    end if

    Write-Debug "--"

    i = i + 1
loop

li_Success = loo_Imap.ExpungeAndClose()
if li_Success = 0 then
    Write-Debug loo_Imap.LastErrorText
    destroy loo_Imap
    destroy loo_MessageSet
    destroy loo_Bundle
    destroy loo_Email
    return
end if

// Disconnect from the IMAP server.
li_Success = loo_Imap.Disconnect()


destroy loo_Imap
destroy loo_MessageSet
destroy loo_Bundle
destroy loo_Email