Set Up the Gmail Vacation Responder
You can find Gmail’s Vacation Responder under general settings. Click the cogwheel in the top right of your inbox and scroll to the bottom of the General tab. Choose the dates, compose your message in WYSIWYG (formatted / rich text) or Plain Text, and turn the vacation responder on. To prevent strangers or spammers from getting hold of additional contact information or learn that your email account is active, select to only send a response to people in your Contacts. Gmail allows you set a first and an optional last day, meaning you won’t have to remember to turn the autoresponder off when you get back.