Ok, thanks:) I have no idea why this message is NO-REPLY - in other words - I have no idea how to respond. Even if the asker found the answer by himself:)
No problem. The email matches the user that's trying to reach you - what you can try is to search for the user using the member search page, and reply using PM.
I guess the email has to be no-reply because the message is intentionally not sent using the forum private message service, which saves the messages within the db - in the end it's an email. Clicking the email link could allow sending messages with your email client, but this way is better to protect users' emails from spam bots.