Unfortunate no, you cannot add a form to your email due to coding. What you could do is direct contacts to your Update Profile link in your email where they can fill in more contact info for your lists. You can add an Update Profile link to the top of your email by following these steps:
Add <SignupLink type="edit">Update Profile/Email Address</SignupLink> into the Permission Reminder text box.
I hope this helps,
Well thanks for the answer. I just wonder why it shouldn`t be possible since I`ve got such mails already. I got emails where I could fill in data directly (google form) so I don`t understand why it shouldn`t be possible.
Tim, sorry if I wasn't clear enough, just because you can't insert a form in your email doesn't prohibit you from including a link to one from within it. All forms need to be processed by a backend. Some small businesses don't have the technical capacity to accomplish that and find the non standard approach that CTCT offers too complicated for a variety of reasons.
My service allows you to create a link to your own form that would store the data in your hosted database as well as allowing you to export it into CTCT or another CRM system.
Email and SMS Marketing Specialist