When soliciting for optins online, the golden rule is to keep your subscription forms simple and short. Additional questions such as gender and birth dates can be perceived as irrelevant or suspicious and many will abandon registration at this point. At the extreme, most subscription forms stick to requesting just the first name and email address at most.
That said, there are a few other questions that can be advantageous for building your relationship with subscribers.
Such as:
These questions put your subscribers at ease by giving them control over their inbox and in the driver seat in their communications with you. Such inclusions will also remove excessive unsubscriptions as the readers are getting exactly the frequency they opted in for. Ensure that you also allow your subscribers to change their preferences on frequency at anytime. Additionally, also provide the option of temporary suspension in your unsubscription form instead of just a straight opt-out.
Having this in place, you should then segment your list according to their frequency preferences; accomplishing a more sustainable future with their permission.
