Hi, me too. I'm using Opera 12 on my Windows 10 & ElementaryOS. It's so hard to use Opera without email integrated! If I have to do, I'll use Firefox & Thunderbird instead of using New Opera (Chromium-based version) and OperaMail (standalone). I often keep my eyes on each new release of Opera, but it's seem to be that the Opera developer's staff no longer develop the feature.