Best AI Email & Marketing Tools 2026

Missive is a collaborative inbox for teams that run on email. Turn emails into tasks, use shared inboxes, automations, and AI to …

Spark Mail is a fast, cross-platform email app with AI writing assistant, smart inbox, priority emails, and team collaboration tools to help …

SaneBox is an AI email management service that automatically sorts unimportant emails, unsubscribes unwanted senders, and reminds you to follow up. Works …

Shortwave uses AI to organize, schedule, write, and search email. Features include AI filters, summaries, team collaboration, and integrations. Plans from $30/s

Superhuman combines Mail, Docs, and the proactive AI assistant Go to help you work faster across apps. Save 4 hours weekly, write …