I was wondering why using
email@example.com works but not
firstname.lastname@example.org (and any combination of periods in the username) is equivalent.
Is this a hidden feature in Gmail?
We could say this is kind of a hidden trick of Gmail. Here is what Google says about it:
And the makeuseof article about it.
Microsoft didn't choose to provide this for outlook, probably because they migrated the hotmail accounts where the
Note that you also have two similar tricks:
There is lifehacker article called Reformat your Gmail address with dots that discusses this great feature.