I’m part time. I don’t use an out of office message, but I do have my hours in my signature, and sometimes include that information in the body of email. Many of the people I correspond with frequently need things turned around quickly – postings for public meetings need to go out so many days ahead of said meeting, and similar. They need to know when I’m available to get the work done!
“There is something especially cruel about advocating for your boundaries while disrespecting other peoples.”

But perhaps we have it all wrong, and are simply enslaving ourselves further to technology by toiling over OOOs that are personality-packed, marketing-friendly perfection. Maybe we need to be altogether more standoffish if we want to make our OOOs really work for us? NYU Professor Meredith Broussard, who’s the author of Artificial Unintelligence: How Computers Misunderstand the World, takes the inspiration for her OOO from US writer, poet and children’s author E.B. White, who once turned down an invitation from President Eisenhower with the words “I must decline, for secret reasons”. Accordingly, Broussard’s OOO reads simply: “I am out of the office, for secret reasons.”
I worked for a federal contractor back during the Great Recession when government offices were shut down/working with a skeleton crew. I still remember getting OOOs from almost every email address in the agency we worked at explaining they were on furlough & to contact one specific person if the issue was urgent. We all assumed this poor person was hiding under her desk, rocking back & forth, with her head in her hands.