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(Visual FoxPro) Fetch Inbox Email Headers

Downloads the headers of all emails in the Inbox and shows some information about each, such as From, Subject, and whether the email has been seen (already read) or not.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

LOCAL loImap
LOCAL lnSuccess
LOCAL loBundle
LOCAL i
LOCAL loEmailHeader
LOCAL lnSeenFlag

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

loImap = CreateObject('Chilkat_9_5_0.Imap')

* Connect to an IMAP server.
* Use TLS
loImap.Ssl = 1
loImap.Port = 993
lnSuccess = loImap.Connect("imap.someMailServer.com")
IF (lnSuccess <> 1) THEN
    ? loImap.LastErrorText
    RELEASE loImap
    CANCEL
ENDIF

* Login
lnSuccess = loImap.Login("myLogin","myPassword")
IF (lnSuccess <> 1) THEN
    ? loImap.LastErrorText
    RELEASE loImap
    CANCEL
ENDIF

* Select an IMAP mailbox
lnSuccess = loImap.SelectMailbox("Inbox")
IF (lnSuccess <> 1) THEN
    ? loImap.LastErrorText
    RELEASE loImap
    CANCEL
ENDIF

* Normally, when an email is downloaded, its "Seen" flag is automatically set.
* We don't want our program to be interfering with the "Seen" flags.
* To do this, set the PeekMode to 1.
loImap.PeekMode = 1

* After selecting the mailbox, the NumMessages property
* will contain the number of emails in the mailbox.
* When sequence numbers (not UIDs) are used to reference emails,
* they range from 1 to N, where N is the number of messages in the mailbox.
* This example will download the headers by sequence numbers.
loBundle = loImap.FetchSequenceHeaders(1,loImap.NumMessages)
IF (loImap.LastMethodSuccess <> 1) THEN
    ? loImap.LastErrorText
    RELEASE loImap
    CANCEL
ENDIF

IF (loBundle.MessageCount = 0) THEN
    ? "No messages in Inbox."
    RELEASE loBundle
    RELEASE loImap
    CANCEL
ENDIF

* Loop over the email headers.  

FOR i = 0 TO loBundle.MessageCount - 1
    loEmailHeader = loBundle.GetEmail(i)
    ? loEmailHeader.From
    ? loEmailHeader.Subject

    * Get the "Seen" flag.
    * When an email is fetched from the IMAP server, the email flags are stored
    * within the email in the "ckx-imap-flags" header.
    * The call to GetMailFlag is simply getting the information from the email header.
    * (it is not communicating with the IMAP server to get this information, because
    * the information was obtained when downloading the headers)
    lnSeenFlag = loImap.GetMailFlag(loEmailHeader,"Seen")
    IF (lnSeenFlag = 1) THEN
        ? "This email has been read (already seen)"
    ELSE
        ? "This email has not yet been read (it is not yet seen)"
    ENDIF

    * We can also look directly at the "ckx-imap-flags" header:
    ? "ckx-imap-flags: " + loEmailHeader.GetHeaderField("ckx-imap-flags")

    ? "--"
    RELEASE loEmailHeader
NEXT

RELEASE loBundle

* Disconnect from the IMAP server.
lnSuccess = loImap.Disconnect()

RELEASE loImap


 

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