SendFox is an email marketing tool made by the AppSumo team for content creators, podcasters, and YouTubers. It keeps the feature set small: a block editor with saved templates and sections, one-click subject line and preview-text suggestions, scheduled campaigns, and RSS-to-email Smart Campaigns that turn new blog or podcast posts into newsletters.
Automations cover multi-step welcome, onboarding, and launch sequences, with A/B testing inside an automation. A dashboard shows a health score and trends for list growth, opens, and clicks, and each contact has an activity timeline. You grow the list with unlimited forms and landing pages, a referral widget, and API and Zapier access.
The deal is a single plan for $29: 5,000 contacts and 300,000 email sends in total (not per month). Double opt-in is on by default; removing branding, disabling double opt-in, and the advanced HTML editor need the Empire Add-On at $10 per month. SendFox does not provide SMTP access; you validate your own sending domain instead.