I just ran into an issue in Newsletter 4.0.9 on wwwkunstunddenker.com
when I try to sign up, it simply returns a blank page, saying ‘wrong email’. I ran out of ideas and hope you guys can help out?
I got all my help with the same issue from this one http://www.digitekprinting.com/postcards, aside from the postcard and direct mailing service they have, they also taught me of newsletter issues.