How can you notify if a burberry daypack is existing?

My mom received this bag that looks like a burberry one. It have burberry logo stitched on the inside.and everything is spelled right.

Answers: 
Here are some great sites that will help you distinguish a phoney vs. authentic Burberry:

http://www.fashionaccessoryforum.com/bur...
http://reviews.ebay.com/Authentic-Burber...

I hope the bag turns out to be authentic.
You need to examine the bad adjectives over.
1- Look up the logo and print out a good quality photograph. Compare it to the logo on the bag. This is the best way to spot a deceitful. Fakes will be close, but not exactly right.
2-examine the inner stitching of the bag. Good quality stitching will be tight and will enjoy no loose threads. Also, the fabric lining the pack will be of good quality.
3.\- look at the handle of the bag. The edges of the handles will be covered contained by a black rubbery material. If it's not painted on only the edges, and is sloppy, it's rig.

Hope this helped.

just by looking, and also a moment ago simply take it to a burberry store
When I was in Chinatown surrounded by NYC, the biggest place to buy frauds, they only had one variation of a fake Burberry, and it didn't look like a indisputable one at all. More than likely your mom have a real one. But she could always cart it in to a Burberry dealer to find out for sure.

Here's an article that may give a hand.
http://www.ehow.com/how_2091325_identify...