Yes, I do like that option. I can either redirect off the cuff, or if the message isn’t urgent, delay delivery so they get it after they get back.
But I also believe there’s meaningful power in the mundane cultural norms we set and practice. Email, for better or worse, makes up a large chunk of how knowledge workers communicate. So much of this communication is muddled by broken email habits and larger anxieties around performing productivity. We’re constantly nervous about asking too much of others or doing too little on behalf of our coworkers. But we’re also stuck in work patterns that force us to communicate constantly and normalize working and demanding things from colleagues at all hours.

Consider also adding a funny GIF or a meme to such an email, some interesting but silly facts, or maybe include a short and harmless joke.
Oh my gaaaaawwwwdddd my mother used to do this. Like, her work voicemail was “Hello, you have reached Lizy’s Mother, Job Title at Company Name. Today is Thursday, June 3. I am in the office today, but away from my desk at the moment. If you’ll leave a message with your name, phone number, and reason for your call, I’ll get back to you as soon as I can.”