(Lianja) Process New Email by Scanning for Senders

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

Note: This example requires Chilkat v11.0.0 or greater.

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llSuccess = .F.

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

loImap = createobject("CkImap")

// Connect to an IMAP server.
// Use TLS
loImap.Ssl = .T.
loImap.Port = 993
llSuccess = loImap.Connect("imap.someMailServer.com")
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    return
endif

// Login
llSuccess = loImap.Login("myLogin","myPassword")
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    return
endif

// Select an IMAP mailbox
llSuccess = loImap.SelectMailbox("Inbox")
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    return
endif

// We can choose to fetch UIDs or sequence numbers.
llFetchUids = .T.

// 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:
loMessageSet = createobject("CkMessageSet")
llSuccess = loImap.QueryMbx("NEW",llFetchUids,loMessageSet)
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    release loMessageSet
    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.
loBundle = createobject("CkEmailBundle")
llHeadersOnly = .T.
llSuccess = loImap.FetchMsgSet(llHeadersOnly,loMessageSet,loBundle)
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    release loMessageSet
    release loBundle
    return
endif

// Loop over the email objects...
loEmailHeader = createobject("CkEmail")
loFullEmail = createobject("CkEmail")
i = 0
lnNumEmails = loBundle.MessageCount
do while i < lnNumEmails
    loBundle.EmailAt(i,loEmailHeader)

    // 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"
    ? loEmailHeader.From
    ? loEmailHeader.FromAddress
    ? loEmailHeader.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.
    lcUidStr = loEmailHeader.GetHeaderField("ckx-imap-uid")
    lnUid = val(lcUidStr)

    llSuccess = loImap.FetchEmail(.F.,lnUid,.T.,loFullEmail)
    if (llSuccess = .F.) then
        ? loImap.LastErrorText
        release loImap
        release loMessageSet
        release loBundle
        release loEmailHeader
        release loFullEmail
        return
    endif

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

    // SaveEml saves the entire email, including attachments.
    llSuccess = loFullEmail.SaveEml(lcFilename)

    ? "--"

    i = i + 1
enddo

// Disconnect from the IMAP server.
llSuccess = loImap.Disconnect()


release loImap
release loMessageSet
release loBundle
release loEmailHeader
release loFullEmail