Send campaigns that land in the inbox — not spam.
A deliverability-first mail merge platform for Gmail, Outlook, and SMTP — with anti-spam scoring, scheduled sends, and live analytics. Built for teams that care about actually reaching their recipients.
Live product preview
Open appBuilt for deliverability, engineered for scale
Every feature is designed to protect sender reputation while keeping campaigns measurable and compliant.
Inbox-Force Engine
Engineered headers (List-Unsubscribe, DKIM alignment, multipart plain+HTML) to maximize inbox placement across Gmail, Outlook, and major providers.
Anti-Spam Scoring
Pre-send validator inspects subject and body for spam triggers, flags risky language, and blocks campaigns above a configurable threshold.
Smart Rate Limiting
Randomized delays between sends and daily volume caps per user — shaped to look human and protect sender reputation.
Live Analytics
Real-time tracking of opens, bounces, unsubscribes, and reply detection. Export campaign data to CSV in one click.
Scheduled Sends
Schedule campaigns for optimal time zones. Background workers dispatch reliably without needing your browser open.
Enterprise Security
OAuth refresh tokens and SMTP credentials sealed with Fernet AES-128 encryption. Multi-tenant isolation between users and campaigns.
CSV & Google Sheets
Import recipient lists from CSV or connect a Google Sheet directly. Variable merge fields are validated before send.
Multi-Provider
One-click connect for Gmail and Outlook via OAuth, or bring your own SMTP server. Switch providers per campaign.
From connect to sent in minutes
Connect provider
One-click OAuth for Gmail and Outlook, or bring your own SMTP.
Upload recipients
CSV or Google Sheet — with merge variable validation.
Compose & score
Write your email, rotate variants, and run the anti-spam validator.
Schedule & send
Fire immediately or schedule — rate-limited background workers handle the rest.
Track & export
Watch opens, bounces, and replies live. Export CSV when ready.
Teams that live in the inbox
Sales Outreach
Personalized prospecting at scale without burning sender reputation.
Investor Updates
Founder-to-investor communication that consistently lands in the primary inbox.
Recruitment
Candidate outreach with reply detection so you never miss a response.
Customer Re-engagement
Win-back campaigns with bounce cleanup and unsubscribe compliance baked in.
Ready to send your first campaign?
Connect your inbox in under a minute — no credit card, no setup call.