It seems that Microsoft has been sending out holiday gifts with its newsletter emails recently. Clicking on the red trees in a holiday promotional email takes users to a dedicated site where they get a $10 gift card for free. Microsoft has apparently hidden these gift cards in newsletter emails sent as far back as Black Friday. They were hidden behind a blue squirrel at that time.
The free $10 gift cards were spotted by multiple users who later posted about them on Reddit. However, it seems that Microsoft only had a limited number of $10 gift cards to give out for free. The promotion has ended so even if you have one of those emails, you won’t be able to snag a free gift card anymore.
Going by the posts on Reddit, it appears that Microsoft only sent out these emails to users in the United States. Quite a few users from Europe said that they didn’t receive an email like this.
Given that this is something that Microsoft has done throughout the entire holiday season this year, it’s possible that Microsoft might send out more promotional emails in the coming days with this easter egg. So if you do receive any such email from Microsoft, maybe take an extra minute or two to look for clues.