Before you begin buying traffic make sure that you have set your autoresponders to
1) Only COLLECT EMAILS!
We only need to collect emails, no need to collect Names, so whenever you create a form (either on getresponse or Aweber) make sure the form only collects emails.

2) Turn off Confirmed Opt In/ Double Confirmed Opt in

By turning off confirmed opt in, your subscribers are NOT required to click a confirmation link to confirm that they want to be in your list  remember ALWAYS disable/turn off Confirmed Opt-in

To turn Off on Aweber 
Go to List Options>> List Settings>> Confirmed Opt in & Scroll down till you see Require Opt-in and Turn off as below

To turn off on Getresponse
Navigate to your campaign  and click on the GEAR icon on the far right (screenshot below) go to Permissions And uncheck the following  Email subscription, Web subscriptions, & API subscriptions

OPTIONAL For getresponse you can turn off postal address, so it will not show at the bottom of your email.
Select your campaign ..  go to “General” and turn off Postal Address as seen below.