Sample code for 30+ languages & platforms
PowerShell

Read POP3 Mail Headers

Reads the header for each email in a POP3 mailbox and display the FROM and SUBJECT header fields.

Chilkat PowerShell Downloads

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

$success = $false

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

# The mailman object is used for receiving (POP3) 
# and sending (SMTP) email.
$mailman = New-Object Chilkat.MailMan

# Set the POP3 server's hostname
$mailman.MailHost = "pop.example.com"

# Set the POP3 login/password.
$mailman.PopUsername = "****"
$mailman.PopPassword = "****"

# Read mail headers and one line of the body.
$bundle = New-Object Chilkat.EmailBundle
$keepOnServer = $true
$headersOnly = $true
$numBodyLines = 1
$success = $mailman.FetchAll($keepOnServer,$headersOnly,$numBodyLines,$bundle)
if ($success -eq $false) {
    $($mailman.LastErrorText)
    exit
}

$email = New-Object Chilkat.Email
$i = 0
while ($i -lt $bundle.MessageCount) {
    $bundle.EmailAt($i,$email)

    # Display the From email address and the subject.
    $("From: " + $email.From)
    $("Subject: " + $email.Subject)

    $i = $i + 1
}