Facebook has replaced default e-mail addresses with its own @Facebook.com addresses
Users have been slow to embrace Facebook e-mail; Facebook might be urging them to
Facebook users can easily access settings to reset their original default e-mails
Whether you’ve noticed or not, you have a new primary e-mail address listed as your Facebook contact, and most likely it’s an address you’ve never used.
The social-networking site has quietly replaced your default e-mail addresses such as Gmail and Yahoo! with your @Facebook.com address, an e-mail service option the company launched a few years ago and synced with Timeline in April.
“As we announced back in April, we’ve been updating addresses on Facebook to make them consistent across our site,” a Facebook spokesperson told Mashable. “In addition to everyone receiving an address, we’re also rolling out a new setting that gives people the choice to decide which addresses they want to show on their Timelines.”
First spotted on Saturday by blogger Gervase Markham, the e-mail address you once listed as your point of contact is now hidden in the site’s database and your assigned @Facebook.com address is highlighted for friends to see.
If you ever changed your Facebook vanity URL, that serves as the prefix of your Facebook e-mail addr