Vacation mode lets you easily stop all rhub notifications. You'll receive no more messages by email, MSN or SMS. When you want to turn it off, your notification settings will remain intact, and things will flow to you as it did before.
If you go to your My Account page, click Vacation Mode under the Tasks section. From there, click 'Turn off' or 'Turn on'.
Other rhub users will be able to see that you've turned on vacation mode. That way they know to get in touch with you another way if it's something important.