I just started working on Curiousfounders.com, a Short and crisp Weekly newsletter for entrepreneurs with a short video.
My newsletter got really good traction from Twitter. To set up everything quickly, I used getrevue.co. The issue was the verification mail, I got about 50 unique visits from Twitter and I think almost all of them subscribed, but none verified the mail.
I now changed from revue to Mailchimp
What can I do now to get those users back? Or should I just forget those early subscribers?