To use Inflection to send emails, you need to configure the global email settings. This allows you to set the "from" and "reply-to" email addresses for all your campaigns. These settings can be overridden in journeys or email assets if necessary.

How do I set up Global Email Configuration?

Once your sending domain is authenticated, go to “Email Settings” in Settings and add Sender Name and Send From and Reply To emails and select from the authenticated domain(s) from the drop down list and hit save.