It got bad enough that others began begging someone to cull the list. Reply all, of course (thankfully it didn’t turn into an explosion of replies all). Someone finally did remove the email from the list.
This might seem obvious, but make sure you clearly state and restate the dates you’ll be out of the office. Even if you put the dates in your subject line, you should also repeat them in the message body. It’s hard to over-communicate here. State exactly when you’ll be back, and whether or not you’ll be responding to calls and emails while you’re out. If you’re on the road but are responding to messages, let everyone know if you’ll be unavailable for an extended period (while on a flight, for example), if you’ll be in a different time zone, and in general, that they should expect a delay in response time. All in all, set realistic expectations and strive to be as specific as possible.

“The world is serious enough as it is - people need, and usually appreciate, an unexpected moment of levity in their day,” he says, when quizzed about how recipients might respond to such an OOO. He also confides that he himself has dispensed with auto responses altogether – though not for idealistic reasons. “The last time I tried to set one up, I botched it so badly that somehow it resent every single email in my outbox from the previous year - client emails, firing notices, literally thousands of emails.”
Hi there, Thank you for your email. I will be out of the office from [MM/DD] to [MM/DD] and will have limited access to email / will not have access to email. If this is urgent, please contact [NAME] at [EMAIL] or [PHONE]. I will do my best to respond promptly to your email when I return on [MM/DD]. Best.