Hijacking this with a question- what do you do when you no longer have an co-workers to serve as an out of office contact? I find myself putting up the OOO less and less, because there’s no one left to respond to anything in my absence (beyond my supervisor who has no knowledge of how to do the tasks of my job).
I want to be clear that I don’t think OOO responders are the solution to the larger problems of worker inequality or the broad American cultural attitudes that celebrate and encourage overwork. That would be silly. The big remedies for what ails modern work will likely require workers organizing and employers recognizing and granting protections. Large companies will have to stop prioritizing shareholder at the expense of their workers. I’m aware how unlikely this feels in practice and how a thoughtful auto reply email feels like applying a band-aid on a gunshot wound. I get it.

John Whatsisname has retired. Please contact [insert name and email] for enquiries relating to [subjects], or myself at [email] for personal matters. Thank you to my colleagues and clients for your support over the years.
Auto Attendants easily route your calls and can be set with a holiday-specific greeting. You can choose to select a schedule adjusted for holiday hours or carry over the rules set for regular business hours.