A per-client brand kits with locked guardrails playbook for Agencies & Freelancers, built in the editor. Starting from a client brief lands, Mailable designs every on-brand email in the flow and ships it through client esps and the tools you already use - inbox-ready in every client.
Trigger
A client brief lands
Agencies & Freelancers
Design engine

Mailable
prompt → on-brand email
Brand kit
colors · fonts · voice
Who runs it
Build mode
Designed in the Mailable editor
Account & strategy
team
Designers
team
Agency owners
team
Integrations
Synced via API & MCP
Sends to
Client ESPs
Client brand kits
Project tools
Trigger: A client brief lands
Switch to the client’s brand kit in a click
Mailable designs the campaign on-brand, same day
Refine to the client’s notes by chatting or nudging blocks
Deliver white-labeled, or export clean HTML
Synced from your stack; designs stay on-brand by default.
Designed in the Mailable editor
Client ESPs
Client brand kits
Project tools
In the editor
A marketer describes the flow in plain English, then refines by chatting or nudging blocks. Brand kit keeps every email on-brand. No code, no waiting on a designer.
Start free, or talk to us about designing email at scale through the editor and the headless API.