MailSword is an advanced e-mail anti-spam protection utility. For every email received from an unknown sender MailSword automatically verifies whether the sender is in fact human by asking the sender to type a 4 digit passcode. All legitimate unknown senders are able to easily confirm their email. The spam will never find a way to your mailbox because spammers are either using fake return email addresses or using automated mass mailing scripts uncapable of responding in human fashion. Correct passcode needs to be typed only once and only by the unknown sender. MailSword automatically imports all existing "email friends" from the popular email clients. MailSword is highly efficient and does not require any filter updates to keep it's functionality in tact. MailSword supports mupliple e-mail accounts, all popular e-mail clients and most Windows-based operating systems. MailSword's behaviour is configurable and it's functionality is superiour to any filtering-based solution.