Xbase++ Requires Chilkat v11.0.0+

Process New Email by Scanning for Senders

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

LOCAL nSuccess
LOCAL oImap
LOCAL nFetchUids
LOCAL oMessageSet
LOCAL oBundle
LOCAL nHeadersOnly
LOCAL oEmailHeader
LOCAL oFullEmail
LOCAL i
LOCAL nNumEmails
LOCAL cUidStr
LOCAL nUid
LOCAL cFilename

nSuccess := 0

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

oImap := CreateObject("Chilkat.Imap")

//  Connect to an IMAP server.
//  Use TLS
oImap:Ssl := 1
oImap:Port := 993
nSuccess := oImap:Connect("imap.example.com")
IF (nSuccess == 0)
    ? oImap:LastErrorText
    oImap:destroy()
    RETURN
ENDIF

//  Login
nSuccess := oImap:Login("myLogin", "myPassword")
IF (nSuccess == 0)
    ? oImap:LastErrorText
    oImap:destroy()
    RETURN
ENDIF

//  Select an IMAP mailbox
nSuccess := oImap:SelectMailbox("Inbox")
IF (nSuccess == 0)
    ? oImap:LastErrorText
    oImap:destroy()
    RETURN
ENDIF

//  We can choose to fetch UIDs or sequence numbers.
nFetchUids := 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:
oMessageSet := CreateObject("Chilkat.MessageSet")
nSuccess := oImap:QueryMbx("NEW", nFetchUids, oMessageSet)
IF (nSuccess == 0)
    ? oImap:LastErrorText
    oImap:destroy()
    oMessageSet:destroy()
    RETURN
ENDIF

//  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.
oBundle := CreateObject("Chilkat.EmailBundle")
nHeadersOnly := 1
nSuccess := oImap:FetchMsgSet(nHeadersOnly, oMessageSet, oBundle)
IF (nSuccess == 0)
    ? oImap:LastErrorText
    oImap:destroy()
    oMessageSet:destroy()
    oBundle:destroy()
    RETURN
ENDIF

//  Loop over the email objects...
oEmailHeader := CreateObject("Chilkat.Email")
oFullEmail := CreateObject("Chilkat.Email")
i := 0
nNumEmails := oBundle:MessageCount
DO WHILE i < nNumEmails
    oBundle:EmailAt(i, oEmailHeader)

    //  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";
    ? oEmailHeader:From
    ? oEmailHeader:FromAddress
    ? oEmailHeader: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.
    cUidStr := oEmailHeader:GetHeaderField("ckx-imap-uid")
    nUid := Val(cUidStr)

    nSuccess := oImap:FetchEmail(0, nUid, 1, oFullEmail)
    IF (nSuccess == 0)
        ? oImap:LastErrorText
        oImap:destroy()
        oMessageSet:destroy()
        oBundle:destroy()
        oEmailHeader:destroy()
        oFullEmail:destroy()
        RETURN
    ENDIF

    //  You can use the GenerateFilename method to
    //  generate a unique filename...
    cFilename := oFullEmail:GenerateFilename()

    //  SaveEml saves the entire email, including attachments.
    nSuccess := oFullEmail:SaveEml(cFilename)

    ? "--"

    i := i + 1
ENDDO

//  Disconnect from the IMAP server.
nSuccess := oImap:Disconnect()

oImap:destroy()
oMessageSet:destroy()
oBundle:destroy()
oEmailHeader:destroy()
oFullEmail:destroy()