OutreachMerge — Mail Merge for Outlook & Microsoft 365

About

Mail merge has lived in Gmail forever. Outlook and Microsoft 365 finally get a real one.

OutreachMerge runs personalized mail-merge campaigns straight from your own Microsoft 365 or Outlook mailbox. Import a CSV of recipients, write your subject and body with {{ merge_fields }}, preview against a real row, and send — rate-limited and safe.

— HOW IT WORKS —

1. Connect Microsoft — sign in to your own account with secure OAuth 2.0 + PKCE. No passwords stored, no client secret, no third-party mail server in the middle.
2. Import your CSV — drop in a list of recipients and OutreachMerge auto-detects the email column.
3. Personalize & send — write with {{ first_name }}, {{ company }}, or any column, preview the result, and send from your mailbox.

— WHY OUTREACHMERGE —

• Send from YOUR mailbox via the official Microsoft Graph API. The From address is always your signed-in account — never spoofed, never relayed.
• Merge fields + live preview against a real recipient before anything sends. Missing fields are flagged.
• Rate-limited & reputation-safe: per-minute token bucket + daily cap, with automatic backoff when Graph throttles.
• Unsubscribe built in — a mandatory, editable footer on every message.
• Scheduling and open tracking (Pro).
• Generous free tier: every core feature + 25 personalized emails/day, free. No credit card.

— BUILT FOR —

Recruiters, founders, sales and BD teams, agencies, and solopreneurs who live in Outlook and Microsoft 365 and need personalized outreach without forwarding tricks or a new sending domain.

— PRIVACY & SAFETY —

OutreachMerge runs locally in your browser. Your recipients and message content stay with you — nothing is resold or relayed. It requests only two delegated Microsoft Graph permissions: User.Read and Mail.Send. No client secret, no access to anyone else's mailbox.

This is a tool for legitimate, permission-based outreach — not bulk spam. Honor unsubscribe requests and comply with CAN-SPAM, GDPR, and CASL.

Not affiliated with Microsoft. Outlook and Microsoft 365 are trademarks of Microsoft Corporation.