is it wrong to reply and say 'sorry ive no idea who you are'.
I have a gmail address that is literally my name @ gmail.com, and every so often i get emails not meant for me. I once got one saying 'we will be in spain for a few days itll be really nice to see you, we can go to <some pub> etc.'
so i replied saying sorry youve got the wrong address. But sometimes i just think its spam, and dont read them or reply. So potentially a really important email isnt being sent to the right person. Anyway, have you ever sent personal emails to complete randoms accidently? would you appreiciate the person reading them and replying?