how to delete email from mailbox with ruby and imap

delete_mails_imap.rb

require "net/imap"

imap = Net::IMAP.new("imap.domain.sk")
imap.login("[email protected]", "HESLO")
imap.select("inbox")

# search for emails that you want to delete
bad_messages = imap.search(["FROM", "[email protected]"])

puts "#{bad_messages.count} messages will be deleted" 

bad_messages.each do |message_id|
  # copy mail to TRASH folder, just in case you are deleting wrong emails
  imap.copy(message_id, "TRASH")
  imap.store(message_id, "+FLAGS", [:Deleted])
end

imap.expunge # flush for deleting
imap.logout

# *Sources*
# * https://gist.github.com/viking/3164382
# * http://stackoverflow.com/questions/10278849/how-to-search-message-in-mailbox-with-net-imap-in-ruby
# * http://alvinalexander.com/blog/post/ruby/ruby-search-imap-mail-server-using-multiple-search-fields