(PureBasic) Process Bounced Email in IMAP

Reads an IMAP mailbox and determines which emails are bounces.

Chilkat PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkMessageSet.pb"
IncludeFile "CkEmail.pb"
IncludeFile "CkEmailBundle.pb"
IncludeFile "CkImap.pb"
IncludeFile "CkBounce.pb"

Procedure ChilkatExample()

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

    imap.i = CkImap::ckCreate()
    If imap.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    bounce.i = CkBounce::ckCreate()
    If bounce.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; Connect to an IMAP server.
    ; Use TLS
    CkImap::setCkSsl(imap, 1)
    CkImap::setCkPort(imap, 993)
    success.i = CkImap::ckConnect(imap,"imap.someMailServer.com")
    If success <> 1
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        CkBounce::ckDispose(bounce)
        ProcedureReturn
    EndIf

    ; Login
    success = CkImap::ckLogin(imap,"admin@chilkatsoft.com","myPassword")
    If success <> 1
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        CkBounce::ckDispose(bounce)
        ProcedureReturn
    EndIf

    ; Select an IMAP mailbox
    success = CkImap::ckSelectMailbox(imap,"INBOX.bounceSamples")
    If success <> 1
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        CkBounce::ckDispose(bounce)
        ProcedureReturn
    EndIf

    messageSet.i
    ; We can choose to fetch UIDs or sequence numbers.
    fetchUids.i = 1
    ; Get the message IDs of all the emails in the mailbox
    messageSet = CkImap::ckSearch(imap,"ALL",fetchUids)
    If CkImap::ckLastMethodSuccess(imap) = 0
        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        CkBounce::ckDispose(bounce)
        ProcedureReturn
    EndIf

    ; Fetch the emails into a bundle object:
    bundle.i
    bundle = CkImap::ckFetchBundle(imap,messageSet)
    If CkImap::ckLastMethodSuccess(imap) = 0
        CkMessageSet::ckDispose(messageSet)

        Debug CkImap::ckLastErrorText(imap)
        CkImap::ckDispose(imap)
        CkBounce::ckDispose(bounce)
        ProcedureReturn
    EndIf

    ; Loop over the bundle and display the FROM and SUBJECT of each.
    i.i = 0
    numEmails.i = CkEmailBundle::ckMessageCount(bundle)
    While i < numEmails
        email.i = CkEmailBundle::ckGetEmail(bundle,i)

        success = CkBounce::ckExamineEmail(bounce,email)

        Debug "Subject: " + CkEmail::ckSubject(email)
        Debug "Bounce Type = " + Str(CkBounce::ckBounceType(bounce)) + ", email address = " + CkBounce::ckBounceAddress(bounce)

        CkEmail::ckDispose(email)

        i = i + 1
    Wend

    ; Disconnect from the IMAP server.
    success = CkImap::ckDisconnect(imap)

    CkMessageSet::ckDispose(messageSet)

    CkEmailBundle::ckDispose(bundle)



    CkImap::ckDispose(imap)
    CkBounce::ckDispose(bounce)


    ProcedureReturn
EndProcedure