[header] How to relax on vacation [title] Set a clear boundary with the office. [step] If you say you will not work on your vacation, stick to it. This includes defining for the office staff what would be an " emergency ". 
Limit the access to your emergency contact information to a trustworthy and experienced co-worker you can trust to buffer you from unneeded contact. When you tell someone you won't be checking messages, stick to it.