The interactive email form block I have in an email is not showing up at all in Outlook (email is tagged with the external source, please use caution.) Even once added to safe sender list. The interactive email form shows up fine in gmail. What is the possible solution? Is it because of sfmc process of envelope and inner email blocks being from 2 different senders?
The email client doesn’t support interactivity and the most common unsupported email client is Outlook.
Below are the supported email clients for the Marketing Cloud Content Builder Email Form block:
Apple iPhone Apple iPad Apple Mail Gmail Webmail Gmail App Yahoo webmail AOL webmail
As Outlook is not supported, I request you to check this third-party, open-source resource for more information: https://www.caniemail.com/features/html-form/
Please refer to the following documentation for more details about the issues with the Interactive Email Form under the Display section: https://help.salesforce.com/articleView?id=mc_ceb_interactive_email_form_faq.htm&type=5.