(Ruby) Download POP3 Email using UIDLs

Demonstrates how to download POP3 email by first getting the complete set of UIDLs and then downloading email by calling FetchByUIDL for each UIDL.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

success = false

# This example requires 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 = Chilkat::CkMailMan.new()

# Set the POP3 server's hostname
mailman.put_MailHost("pop.example.com")

# Set the POP3 login/password.
mailman.put_PopUsername("myLogin")
mailman.put_PopPassword("myPassword")

stUidls = Chilkat::CkStringTable.new()
success = mailman.FetchUidls(stUidls)
if (success == false)
    print mailman.lastErrorText() + "\n";
    exit
end

email = Chilkat::CkEmail.new()

count = stUidls.get_Count()
i = 0
while i < count
    # Download the full email.
    success = mailman.FetchByUidl(stUidls.stringAt(i),false,0,email)
    if (success == false)
        print mailman.lastErrorText() + "\n";
        exit
    end

    print i.to_s() + "\n";
    print "From: " + email.ck_from() + "\n";
    print "Subject: " + email.subject() + "\n";

    i = i + 1
end

mailman.Pop3EndSession()