For #2. The dots are completely irrelevant, so you can actually add and remove. m.axm@gmail.com ma.xm@gmail.com m.ax.m@gmail.com m.a.x.m@gmail.

For #2. The dots are completely irrelevant, so you can actually add and remove. m.axm@gmail.com ma.xm@gmail.com m.ax.m@gmail.com m.a.x.m@gmail.com etc etc etc