Thank you for your email. I am no longer with [company name]. Please direct enquiries to [insert name and email] or [insert name and email].
There were a lot of bilingual staff at my last job, and they always did their out of office messages in both languages. But who knows, maybe the Welsh translator was in a rush and forgot. An agency that handles government translations like road signs might be expected have such rules. On the other hand, never underestimate the boneheadedness of the monolinguals. Especially English ones.

Whatever style you may ultimately decide to adopt, each of these emails should feature these essential elements: Precise reference to the period in which you will be away, as the receiver will want to know when they can reach you again. Inform your correspondent about the date by which they can expect to receive a response to the email they send you during the holiday season. Indication that your will reply to the email when they return. Check Out these examples:
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.”