• rlytest
  Utility that tests if your mail server allows spam mail relaying; security
  in Computers > Säkerhet with computers mail relaying server spam säkerhet tests utility by 2 users
• Spam Mail Relay Test
  Test if your mail server allows spam relaying;security
  in Computers > Säkerhet with computers mail relaying security server spam säkerhet test
• Spam Relay Test
  Check if your SMTP (mail) server accepts relaying
  in Computers > Säkerhet with computers mail relaying server smtp säkerhet

relaying from all users