how to stop facebook from sending notification emails?

[â–º HairSupply â—„]

This is kinda new case for me.
A colleague has been receiving notification emails from facebook to her email address that never ever used to register on facebook.
The email address is company related and she's smart enough not to use it to anything silly on the internet.

Facebook started sending her notification emails after somebody tagged her in a photo on facebook.
Which is, kinda wierd.

I tried to check whether her email ever been used to register facebook account by trying to recover password with her email address as reference.
But we got a page telling us that the email address has never been used to register an account.

So, in short, I've got this situation :
- An email address that never been used to register a facebook account
- Facebook has been sending notification emails to this email address.
- This happen after somebody tag a photo. As the notification emails say "A-Person-Name has tagged a photo of you"

Which makes me wonder how can it be possible....

Thank you
- That is the problem. I know how to manage a facebook account generally. But this email address has NEVER been used to register a facebook account and IS NOT REGISTERED in facebook, proven as I got "invalid email address" error message when I tried to go to "Forgot password" link ( for checking )
- That means, I cant login using the email address as this email address which keeps getting notification emails from facebook, IS NOT REGISTERED in facebook
- Ok, will try to create facebook account using that email address. This is silly tho n really annoying. I'll post the progress as soon as possible.