Never give your ACE password to anyone, even someone claiming to be an ACE employee. No ACE employee should ever request your password. Your email address is required for your ACE account. Reminders and updates from events in which you participate. All messages are sent to groups, not individuals.
Every message has the name and email address of the sender.
Recipients are anonymous, but senders are identified. This allows you to contact the sender of any message you receive. This also makes it easier to report abuse of the ACE email system, if it occurs. Your messages are grouped and sent to you at intervals. You'll never receive more than one message a day from the ACE system.