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Fetch a Range of POP3 Messages

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Demonstrates the Chilkat MailMan.FetchRange method, which retrieves a range of messages from the POP3 mailbox and appends them to an EmailBundle. The arguments are keepOnServer, headersOnly, numBodyLines, a zero-based inclusive startIndex and endIndex, and the EmailBundle. This example fetches the first five messages.

Background: Fetching a range instead of everything is useful for paging through a large mailbox, or resuming after an interruption — download messages 0–99, then 100–199, and so on. Combined with headersOnly, it lets you build a quick message-list view without pulling full bodies and attachments up front.

Chilkat PowerShell Downloads

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

$success = $false

#  Demonstrates the MailMan.FetchRange method, which retrieves a range of messages from the
#  POP3 mailbox and appends them to an EmailBundle.  The arguments are keepOnServer,
#  headersOnly, numBodyLines, startIndex, endIndex, and the EmailBundle.  The indexes are
#  zero-based and inclusive.

$mailman = New-Object Chilkat.MailMan

#  Configure the POP3 server connection.
$mailman.MailHost = "pop.example.com"
$mailman.MailPort = 995
$mailman.PopSsl = $true
$mailman.PopUsername = "user@example.com"
$mailman.PopPassword = "myPassword"

#  Fetch the first 5 messages (indexes 0 through 4), full bodies, leaving them on the server.
#  keepOnServer=$true, headersOnly=$false (fetch the entire message).
#  Note: numBodyLines only applies when headersOnly is $true (it sets how many lines of the
#  body to include along with the headers).  When headersOnly is $false, the entire message
#  is fetched and numBodyLines is ignored.
$bundle = New-Object Chilkat.EmailBundle

$success = $mailman.FetchRange($true,$false,0,0,4,$bundle)
if ($success -eq $false) {
    $($mailman.LastErrorText)
    exit
}

$n = $bundle.MessageCount
$("Fetched " + $n + " messages.")

$email = New-Object Chilkat.Email

for ($i = 0; $i -le $n - 1; $i++) {
    $success = $bundle.EmailAt($i,$email)
    $($email.Subject)
}

#  Note: Explicitly connecting/authenticating is optional.  Chilkat MailMan automatically
#  connects and authenticates -- using the property settings above -- whenever a server
#  operation requires it.  Calling the explicit connect/authenticate methods can still be
#  helpful to determine whether a failure occurs while connecting or while authenticating.