(Ruby) Fetch Oldest/Newest IMAP Email

Emails may be downloaded by sequence number. Assuming the selected mailbox is not empty, the oldest email is at sequence number 1, and the newest email is at sequence number N. The FetchSingle method may be used to download by sequence number.

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

imap = Chilkat::CkImap.new()

# Connect to an IMAP server.
# Use TLS
imap.put_Ssl(true)
imap.put_Port(993)
success = imap.Connect("mail.testemail.net")
if (success == false)
    print imap.lastErrorText() + "\n";
    exit
end

# Login
success = imap.Login("***","***")
if (success == false)
    print imap.lastErrorText() + "\n";
    exit
end

# Select an IMAP mailbox
success = imap.SelectMailbox("Inbox")
if (success == false)
    print imap.lastErrorText() + "\n";
    exit
end

# After selecting a mailbox, the NumMessages property
# contains the number of emails in the selected mailbox.

n = imap.get_NumMessages()

if (n > 0)

    # The oldest email is always at sequence number 1.
    isUid = false

    oldestEmail = Chilkat::CkEmail.new()
    success = imap.FetchEmail(false,1,isUid,oldestEmail)
    if (success == false)
        print imap.lastErrorText() + "\n";
        exit
    end

    # Display the From and Subject
    print oldestEmail.fromAddress() + "\n";
    print oldestEmail.subject() + "\n";

    print "--" + "\n";

    # The newest email is at sequence number N:
    newestEmail = Chilkat::CkEmail.new()
    success = imap.FetchEmail(false,n,isUid,newestEmail)
    if (success == false)
        print imap.lastErrorText() + "\n";
        exit
    end

    # Display the From and Subject
    print newestEmail.fromAddress() + "\n";
    print newestEmail.subject() + "\n";

end

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