PowerShell Requires Chilkat v11.0.0+

Scan for Emails with Attachments and Save Attachments to Files

Scan for emails with attachments and save attachments. PowerShell

Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

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

$imap = New-Object Chilkat.Imap

#  Connect to an IMAP server.
#  Use TLS
$imap.Ssl = $true
$imap.Port = 993
$success = $imap.Connect("imap.example.com")
if ($success -eq $false) {
    $($imap.LastErrorText)
    exit
}

#  Login
$success = $imap.Login("myLogin","myPassword")
if ($success -eq $false) {
    $($imap.LastErrorText)
    exit
}

#  Select an IMAP mailbox
$success = $imap.SelectMailbox("Inbox")
if ($success -eq $false) {
    $($imap.LastErrorText)
    exit
}

#  We can choose to fetch UIDs or sequence numbers.
$fetchUids = $true

#  Get the message IDs of all the emails in the mailbox
$messageSet = New-Object Chilkat.MessageSet
$success = $imap.QueryMbx("ALL",$fetchUids,$messageSet)
if ($success -eq $false) {
    $($imap.LastErrorText)
    exit
}

#  Fetch the email headers into a bundle object:
$bundle = New-Object Chilkat.EmailBundle
$headersOnly = $true
$success = $imap.FetchMsgSet($headersOnly,$messageSet,$bundle)
if ($success -eq $false) {
    $($imap.LastErrorText)
    exit
}

#  Scan for emails with attachments, and save the attachments
#  to a sub-directory.
$fullEmail = New-Object Chilkat.Email
$emailHeader = New-Object Chilkat.Email
$i = 0
while ($i -lt $bundle.MessageCount) {
    #  The bundle contains email headers..
    $bundle.EmailAt($i,$emailHeader)

    #  Does this email have attachments?
    #  Use GetMailNumAttach because the attachments
    #  are not actually in the email object because
    #  we only downloaded headers.
    $numAttach = $imap.GetMailNumAttach($emailHeader)

    if ($numAttach -gt 0) {
        #  Download the entire email and save the
        #  attachments. (Remember, we 
        #  need to download the entire email because
        #  only the headers were previously downloaded.

        #  The ckx-imap-uid header field is added when
        #  headers are downloaded.  This makes it possible
        #  to get the UID from the email object.
        $uidStr = $emailHeader.GetHeaderField("ckx-imap-uid")
        $uid = $uidStr

        $success = $imap.FetchEmail($false,$uid,$true,$fullEmail)
        if ($success -eq $false) {
            $($imap.LastErrorText)
            exit
        }

        $success = $fullEmail.SaveAllAttachments("attachmentsDir")

        for ($j = 0; $j -le $numAttach - 1; $j++) {
            $filename = $imap.GetMailAttachFilename($emailHeader,$j)
            $($filename)
        }

    }

    $i = $i + 1
}

#  Disconnect from the IMAP server.
$success = $imap.Disconnect()