The US Postal Service will email scans of your mail to you

If you're going away for the holidays and can't get to your mailbox, don't fret.

The U.S. Postal Service will email images of letters right to your virtual mailbox — and the best part is that it's free.

The new service, Informed Delivery, will send up to 10 black and white images of your actual letter-size envelopes to view on any computer or smartphone each morning. The service is currently available for certain ZIP codes. Any additional mail can be found on the USPS website at no charge.

There's also no need to worry about privacy.

U.S. Postal Service representative Zy Richardson confirmed that the organization only takes photos of the exterior of letters as part of its regular sorting operations.

"The USPS does not open any mail in the process," she told CNBC via email.

To check for geographic availability and enroll in the service, customers can register for an account on the agency's website.

By CNBC's Kurumi Fukushima, follow her @RumiCNBC