How can I get legally a list of 300 Emails?

Question

I need opinion of of hundreds of people about social/medical

project via Email. Everything will be legal with no harm to anyone.

Answer 1

Good thoughts !

Ask again I am trying, From  my network (esp for you); ask again please or extend the answer time.

All the best for your toil!

Answer 2

ask the 300 people

...other than that I don't think you can legally get the list

Answer 3

you can get them, but it will likely go into their spam folders if you try to email all 300 at the same time.  I know plenty of folks ge my address and I don't respond when I don't know someone.  I think you'd be better off going to a community event/center and setting up a table.  If it's hot, offer free water in exchange for completing the survey.