If you’ve been trying to obtain another Twitter username, you probably know that you are required to associate a different email address for each one you create. Luckily, if you have a Gmail email address, there is a simple workaround to this problem.
Let’s say your Gmail email address is firstname.lastname@example.org. If you add a dot (.) anywhere in the username, all email messages will still reach your inbox. In other words, any of these and other related email addresses will still make it to your account:
Here’s a further explanation by Google:
Gmail allows only one registration for any given username. Once you sign up for a username, nobody else can sign up for the same username, regardless of whether it contains extra periods or capital letters; those usernames belong to you. If you created email@example.com, no one can ever register firstname.lastname@example.org, or Your.email@example.com. Because Gmail doesn’t recognize dots as characters within usernames, you can add or remove the dots from a Gmail address without changing the actual destination address; they’ll all go to your inbox, and only yours.
One more solution…
According to the popular tech blog, labnol, every Gmail account also comes with another valid email address using a googlemail.com domain. In other words, you can also apply the same method of adding dots to a googlemail.com domain as you did with the gmail.com domain.
Heck, if you don’t believe any of this dot-adding business, go ahead and try logging into your Gmail account with the extra dots in your username.