Yep, I meant that: 1) my mom won't have an e-mail address with the surname of her first husband (my dad, passed away) 2) my brother-in-law (brother of my wife

Yep, I meant that: 1) my mom won't have an e-mail address with the surname of her first husband (my dad, passed away) 2) my brother-in-law (brother of my wife) surely won't have it 3) my cousins all have different surnames 4) my wife may accept one, but I talk with her every day and when we don't meet or talk via phone we tend to communicate via post-its on the fridge or similar