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Tcl Examples

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(Tcl) 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 Tcl Extension Downloads

Chilkat Tcl Extension Downloads

load ./chilkat.dll

set imap [new_CkImap]

#  Anything unlocks the component and begins a fully-functional 30-day trial.
set success [CkImap_UnlockComponent $imap "Anything for 30-day trial"]
if {[expr $success != 1]} then {
    puts [CkImap_lastErrorText $imap]
    delete_CkImap $imap
    exit
}

#  Connect to an IMAP server.
#  Use TLS
CkImap_put_Ssl $imap 1
CkImap_put_Port $imap 993
set success [CkImap_Connect $imap "imap.someMailServer.com"]
if {[expr $success != 1]} then {
    puts [CkImap_lastErrorText $imap]
    delete_CkImap $imap
    exit
}

#  Login
set success [CkImap_Login $imap "myLogin" "myPassword"]
if {[expr $success != 1]} then {
    puts [CkImap_lastErrorText $imap]
    delete_CkImap $imap
    exit
}

#  Select an IMAP mailbox
set success [CkImap_SelectMailbox $imap "Inbox"]
if {[expr $success != 1]} then {
    puts [CkImap_lastErrorText $imap]
    delete_CkImap $imap
    exit
}

#  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.
CkImap_put_PeekMode $imap 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.
# bundle is a CkEmailBundle
set bundle [CkImap_FetchSequenceHeaders $imap 1 [CkImap_get_NumMessages $imap]]
if {[expr [CkImap_get_LastMethodSuccess $imap] != 1]} then {
    puts [CkImap_lastErrorText $imap]
    delete_CkImap $imap
    exit
}

if {[expr [CkEmailBundle_get_MessageCount $bundle] == 0]} then {
    puts "No messages in Inbox."
    delete_CkEmailBundle $bundle

    delete_CkImap $imap
    exit
}

#  Loop over the email headers.

for {set i 0} {$i <= [expr [CkEmailBundle_get_MessageCount $bundle] - 1]} {incr i} {
    # emailHeader is a CkEmail
    set emailHeader [CkEmailBundle_GetEmail $bundle $i]
    puts [CkEmail_from $emailHeader]
    puts [CkEmail_subject $emailHeader]

    #  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)
    set seenFlag [CkImap_GetMailFlag $imap $emailHeader "Seen"]
    if {[expr $seenFlag == 1]} then {
        puts "This email has been read (already seen)"
    }     else {
        puts "This email has not yet been read (it is not yet seen)"
    }

    #  We can also look directly at the "ckx-imap-flags" header:
    puts "ckx-imap-flags: [CkEmail_getHeaderField $emailHeader ckx-imap-flags]"

    puts "--"
    delete_CkEmail $emailHeader

}

delete_CkEmailBundle $bundle

#  Disconnect from the IMAP server.
set success [CkImap_Disconnect $imap]

delete_CkImap $imap

 

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