PowerBuilder

Process New Email by Scanning for Senders

Scan email and save application-selected emails to EML files with unique filenames. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Imap
integer li_FetchUids
oleobject loo_MessageSet
oleobject loo_Bundle
integer li_HeadersOnly
oleobject loo_EmailHeader
oleobject loo_FullEmail
integer i
integer li_NumEmails
string ls_UidStr
integer li_Uid
string ls_Filename

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

// Fetch messages from the mailbox using a search criteria.
// This example finds NEW emails: these are emails that have the RECENT flag set, but not the SEEN flag:
loo_MessageSet = create oleobject
li_rc = loo_MessageSet.ConnectToNewObject("Chilkat.MessageSet")

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

// This example will download headers, and then download
// the full email for those emails sent from a contact
// in our database.

// When downloading headers, each email object contains
// (obviously) the headers, but the body will be missing.
// Also, attachments will not be included.  However, it is
// possible to get information about the attachments
// as well as the complete size of the email.
loo_Bundle = create oleobject
li_rc = loo_Bundle.ConnectToNewObject("Chilkat.EmailBundle")

li_HeadersOnly = 1
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

// Loop over the email objects...
loo_EmailHeader = create oleobject
li_rc = loo_EmailHeader.ConnectToNewObject("Chilkat.Email")

loo_FullEmail = create oleobject
li_rc = loo_FullEmail.ConnectToNewObject("Chilkat.Email")

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

    // The sender's email address and name are available
    // in the From, FromAddress, and FromName properties.
    // If the sender is "Chilkat Support <support@chilkatsoft.com",
    // then the From property will hold the entire string.
    // the FromName property contains"Chilkat Support",
    // and the FromAddress property contains "support@chilkatsoft.com"
    Write-Debug loo_EmailHeader.From
    Write-Debug loo_EmailHeader.FromAddress
    Write-Debug loo_EmailHeader.FromName

    // Assume at this point your code checks to see if the sender
    // is one in your contacts database.  If so, this is
    // the code you would write to download the entire
    // email and save it to a file.

    // The ckx-imap-uid header field is added when
    // headers are downloaded.  This makes it possible
    // to get the UID from the email object.
    ls_UidStr = loo_EmailHeader.GetHeaderField("ckx-imap-uid")
    li_Uid = Integer(ls_UidStr)

    li_Success = loo_Imap.FetchEmail(0,li_Uid,1,loo_FullEmail)
    if li_Success = 0 then
        Write-Debug loo_Imap.LastErrorText
        destroy loo_Imap
        destroy loo_MessageSet
        destroy loo_Bundle
        destroy loo_EmailHeader
        destroy loo_FullEmail
        return
    end if

    // You can use the GenerateFilename method to
    // generate a unique filename...
    ls_Filename = loo_FullEmail.GenerateFilename()

    // SaveEml saves the entire email, including attachments.
    li_Success = loo_FullEmail.SaveEml(ls_Filename)

    Write-Debug "--"

    i = i + 1
loop

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


destroy loo_Imap
destroy loo_MessageSet
destroy loo_Bundle
destroy loo_EmailHeader
destroy loo_FullEmail