You’ve got mail

What would you do if, after 20 years, your husband’s ex suddenly tried to reach out through an old email address he hasn’t used in ages? Here’s the background: My husband let go of that email address a long time ago—he hasn’t checked it in years. I eventually reclaimed it just in case anything important was still connected to it. We got together in 2005, and in 2010, an email came through with just an emoji. At the time, I honestly thought someone had hacked her account because it was so random. Fast forward to this January—20 years since they last spoke—and she sends another message to that same email, asking, “Does this email still work?” It doesn’t make me feel any type of way. Honestly, I laughed when I saw it. It’s just wild that she’s reaching out after all this time. Part of me wants to reply with a simple question mark. Another part of me wants to ignore it completely. What would you do?