Campaigns: Automatically add address to the footer of the emails for GDPR

when the user is about to send the campaign, offer a quick way to add automatically their company address or information on every email, along with the unsubscribe footers.

This can be a new “Compliance“ block in the campaign section that has two options:

• Address

• Unsubscribe link (toggle).

Addresses should be stored on every campaign, potentially offering the option to the user to create an address book and pick the first one by default.

As for the unsubscribe footer, this can be a small editor that we let the user to customize the end message.

Our backend system should be aware of this when generating the email.