Reach email marketing cross-sell card added to Domain Overview

We've added a Reach cross-sell card to the Tools section of Domain Overview for domains not yet connected to a Reach plan. If you're eligible for a free Reach plan, you'll see "Grow your audience with email marketing" with a "Start for free" button. Other eligible users see the same card with an "Explore Reach" button instead. If your domain is already connected to Reach as a sending domain, you'll see "Manage your email marketing" under Connected Services instead. This gives you a direct way to discover and adopt Reach email marketing from your domain settings.