One thing that really bothers me in out of office messages is “contact my supervisor” without listing the supervisor’s name. I work in a company with 4 large service departments, and each department is broken into multiple smaller teams. I don’t have a great grasp on who is on or who leads which smaller team, and we don’t have an org chart with that much detail readily available. If you’re saying to contact someone, I think you should always include the person’s name and contact information, not just “my supervisor”, “one of my team members”, etc. !
Something like, “I will not have access to email while I am out and will get back to you when I return. If your issue is urgent, please resend your email after X date,” would be… more polite, I guess.

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Mary founded Instructional Solutions in 1998, and is an internationally recognized business writing trainer and executive writing coach with two decades of experience helping thousands of individuals and businesses master the strategic skill of business writing. She excels at designing customized business writing training programs to maximize productivity, advance business objectives, and convey complex information. She holds a B.A. in English from the University of Rhode Island, an M.A. in English Literature from Boston College, and a C.A.G.S. in Composition and Rhetoric from the University of New Hampshire.