Result

The final result will look something like this

http://eepurl.com/gJOjFX

How to create the sign up form

1. Go to Mailchimp Dashboard

2. Click on Audience

https://images.tango.us/public/screenshot_cfb18ea0-64df-48e5-8b96-144cc5968fb9?crop=focalpoint&fit=crop&fp-x=0.0858&fp-y=0.1173&fp-z=2.5787&w=1200&mark-w=0.2&mark-pad=0&mark64=aHR0cHM6Ly9pbWFnZXMudGFuZ28udXMvc3RhdGljL21hZGUtd2l0aC10YW5nby13YXRlcm1hcmsucG5n&ar=1720%3A1304

3. Click on Signup forms

https://images.tango.us/public/screenshot_f7cb4907-34cc-4aa3-b678-a0504feeac3d?crop=focalpoint&fit=crop&fp-x=0.0657&fp-y=0.1971&fp-z=2.8763&w=1200&mark-w=0.2&mark-pad=0&mark64=aHR0cHM6Ly9pbWFnZXMudGFuZ28udXMvc3RhdGljL21hZGUtd2l0aC10YW5nby13YXRlcm1hcmsucG5n&ar=1720%3A1304

4. Click on Form builder

https://images.tango.us/public/screenshot_e1e47b8a-5613-46e6-a051-bfd5459bbb1e?crop=focalpoint&fit=crop&fp-x=0.3331&fp-y=0.3409&fp-z=1.2147&w=1200&mark-w=0.2&mark-pad=0&mark64=aHR0cHM6Ly9pbWFnZXMudGFuZ28udXMvc3RhdGljL21hZGUtd2l0aC10YW5nby13YXRlcm1hcmsucG5n&ar=1720%3A1304

5. Copy the Signup form URL

https://images.tango.us/public/screenshot_b3c9bdb1-d219-41ab-bffd-efb3d0123632?crop=focalpoint&fit=crop&fp-x=0.1468&fp-y=0.5299&fp-z=2.1001&w=1200&mark-w=0.2&mark-pad=0&mark64=aHR0cHM6Ly9pbWFnZXMudGFuZ28udXMvc3RhdGljL21hZGUtd2l0aC10YW5nby13YXRlcm1hcmsucG5n&ar=1720%3A1304

6. Embed the form in Notion

Remove the scroll bar

To make sure there is no scroll bar make the block height as tall as you can, this way the iframe block will always have space and no scroll bar will show up.