(Ruby) Read All Email from POP3 Inbox by Message Numbers

Demonstrates how to read all of the email from a POP3 inbox by fetching each email by it's message number.

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

require 'chilkat'

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

mailman = Chilkat::CkMailMan.new()

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

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

# Get the number of messages in the mailbox.
numMessages = mailman.GetMailboxCount()

# Message numbers are specific to a POP3 session. 
# If a maildrop (i.e. inbox)  contains 10 messages, 
# the message numbers will be 1, 2, 3, ... 10. 
# If message number 1 is deleted and a new POP3 session 
# is established, there will be 9 messages numbered 1, 2, 3, ... 9. 

i = 1

while i <= numMessages

    # email is a CkEmail
    email = mailman.FetchByMsgnum(i)
    if (mailman.get_LastMethodSuccess() != true)
        print mailman.lastErrorText() + "\n";
        exit
    end

    print email.ck_from() + ": " + email.subject() + "\n" + "\n";

    i = i + 1

end