Let's put aside the ethics/morals debate for a moment and consider the math.
To send a spacecraft, using our current technology, to the nearest star would take tens of thousands of years. There is no reasonable expectation that a spacecraft built using our current technology could survive that long, so we cannot simply do this yet. Realistically, we're at least centuries away from being able to do this. That gives us a lot of time to research these planets.
A few dozen emails per day, probably not a problem. Many dozens, or hundreds, of emails per day, somewhat overwhelming.
The question is what's the nature of the problem? Email, in and of itself, is not the problem. It's the number of emails. Are you giving your email address to anyone who asks? I'm amazed at the number of retailers who ask for my email address. Maybe we don't need to give out email addresses like candy.
Beyond that, some people seem to love to spend a lot of their time sending out pointless emails. Maybe we need to set up filters to direct their emails to a separate folder that we skim over, say, once a week. Half, to three quarters, of the emails I receive at work are unnecessary and contribute nothing at all to my work - they typically get deleted post haste.
Let me preface this by saying that I know I have a problem.
I make my living writing code. Have done pretty much continually since 1986. I always have at least two personal programming projects on the go at home, and I have a long, and growing, list of projects I'd like to do. If I was unemployed, aside from diligently looking for a paying job, I'd be spending even more time working on my own projects.
I did say that I know I have a problem.
What this country needs is a good five cent microcomputer.