If you'll be away from your Gmail account, like on a vacation or without access to the Internet, you can set up a vacation responder to automatically notify people that you won't be able to get back to them right away. When people send you a message, they'll receive an email response containing what you've written in your vacation auto reply.
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Note: If you have a Gmail signature, it will be shown at the bottom of your vacation response.
When your vacation reply is on, you'll see a banner across the top of your inbox that shows the subject of your vacation response.
To turn off your vacation response, click End now.
Your vacation reply starts at 12:00 AM on the start date and ends at 11:59 PM on the end date, unless you end it earlier.
In most cases, your vacation response is only sent to people the first time they message you.
Here are the times someone may see your vacation response more than once:
Note: Messages sent to your spam folder and messages addressed to a mailing list you subscribe to won't get your vacation response.