SaaS onboarding

Automatically send personalized follow-ups to new signups without manual effort.

Trial nurturing

Trigger emails when users start a free trial, keeping them engaged.

Payment confirmation

Send a tailored message after a successful payment or subscription.

Inactivity re-engagement

Reach out to users who haven't logged in recently with a personal note.

Founder-led communication

Replace generic marketing templates with founder-sent emails that feel human.

Multi-tool integration

Connect with Stripe, Segment, or custom webhooks to trigger sequences based on business events.

Send-only permissions

The tool uses Gmail's `gmail.send` scope or Microsoft 365's `Mail.Send`—it cannot read your inbox, drafts, threads, or contacts.

Trigger-based automation

Choose events like signup, trial start, payment, or inactivity to launch email sequences automatically.

Plain-text, personal emails

Emails are sent as plain text from your real address, avoiding marketing-style templates for a human feel.

OAuth with CSRF protection

One-click OAuth connection with cryptographically signed state parameters; no passwords stored, and you can revoke access anytime.

AES-256-GCM encryption

All OAuth tokens and sensitive data are encrypted at rest with regular key rotation.

Full audit log

See every email sent with timestamps, pause any playbook instantly, and export data anytime.

Daily send caps and throttling

Control how many emails go out per day to avoid overwhelming recipients.

Per-user suppression list

Automatically handle unsubscribes and suppress specific users from receiving further emails.