OutMass

Mass email campaigns directly from Outlook Web

Turn Outlook Web into a professional mass email tool. OutMass brings mail merge, tracking, follow-ups, and AI-powered writing directly inside outlook.office.com and outlook.live.com — with full Microsoft 365 and personal Outlook.com support. ✨ WHAT YOU CAN DO 📧 Mail merge from CSV — personalize with {{firstName}}, {{company}}, and any column 🎯 Subject A/B testing — split-test subject lines to find what converts ⏰ Scheduled sending — send at the perfect time, across time zones 🔁 Automatic follow-ups — retarget recipients who didn't open 📚 Template library — save and reuse your best-performing emails 🤖 AI Email Writer — Claude-powered drafting (Pro, 50/month) 📊 Open & click tracking — pixel tracking, click tracking, unsubscribe links 📈 Campaign reports — open rates, click rates, full CSV export 🌍 10 UI languages — including Arabic RTL support 💼 BUILT FOR • Founders and SDRs running outbound from Outlook • Agencies managing client campaigns in their existing mailbox • Teams that can't or don't want to switch to Gmail-based tools • Anyone who has tried to mail-merge in Outlook and given up 💰 PRICING • Free — 50 emails/month, forever • Starter — $9/month, 2,000 emails/month • Pro — $19/month, 10,000 emails/month + AI Writer + A/B testing + templates 🔒 YOUR DATA STAYS YOURS OutMass sends through your own Microsoft Graph API using OAuth 2.0. We never store the content of your emails on our servers. Your Outlook account, your data, your deliverability. 🛡️ 30-DAY MONEY-BACK GUARANTEE Not happy with your subscription? Get a full refund within 30 days — no questions asked. 🚀 Install OutMass and run your first campaign in 5 minutes.