A onboarding and activation sequences playbook for SaaS & Startups, built automated sequence. Starting from a user signs up or starts a trial, Mailable designs every on-brand email in the flow and ships it through product events and the tools you already use - inbox-ready in every client.
Trigger
A user signs up or starts a trial
SaaS & Startups
Design engine

Mailable
prompt → on-brand email
Brand kit
colors · fonts · voice
Who runs it
Build mode
Runs automatically on triggers
Growth & lifecycle
team
Product teams
team
Founders
team
Integrations
Synced via API & MCP
Sends to
Product events
CRM
Data warehouse
Trigger: A user signs up or starts a trial
Mailable designs a welcome email and a multi-step activation sequence
Each step nudges toward the next milestone toward the aha moment
It skips anyone who has already activated
Triggered straight from your product via the API
Synced from your stack; designs stay on-brand by default.
Runs automatically on triggers
Product events
CRM
Data warehouse
Automated sequence
Triggered by events from your stack - signup, purchase, inactivity - Mailable designs and sends every step automatically, with timing and branching you control.
Start free, or talk to us about designing email at scale through the editor and the headless API.