Today I received a spam mail and it wasn’t addressed to me, somehow it escaped Google’s mail spam filters and reached my inbox. When I opened to see the mail it wasnt addressed to my mail id instead it was a id very similar to my id just without the ‘.’ dot.
And later learned that Gmail reserves all combinations of the name when we create our account. So if I create an account with mr.x@gmail.com, it reserves mrx@gmail.com and even m.rx@gmail.com. So any mail addressed to these ids will reach you !!
Original id : mr.x@gmail.com
Automatically created ids : mrx@gmail.com , m.rx@gmail.com