Upgrade CTA from Dropbox

This email from Dropbox informs the recipient that their team's file syncing has stopped because their Dropbox for Teams trial ended. The structure includes the Dropbox logo at the top, a clear statement about the sync stoppage, a call-to-action button to "Manage your plan," and options to resume use or cancel the plan. The tone is straightforward and professional, emphasizing urgency to manage the plan and ensuring customer support is available for questions.