MAGIC BOXES by Closi
One Prompt. Thousands of Personal Emails Instantly.
MAGIC BOXES automatically writes personalized emails for every recipient directly in your email editor. It uses your brand voice, business context and each recipient unique data and past interactions. Forget mass emails. Start truly connecting.
HOW IT WORKS
Three simple steps to create personalized emails at scale
Add the Magic Box
Drop a Magic Box into your email editor — just like any other block.
Write your prompt
Describe what you want: "Pitch our product to a busy founder at a startup" or "Write a fun intro for a CMO at a fashion brand"
We do the rest
We combine your prompt, your brand context, and the recipient's data to generate unique content — per person.
Mass Email Marketing is OUTDATED
Traditional mass email marketing is broken. Generic messaging fails to engage, subject lines fall flat, and manual personalization simply doesn't scale. Emails lack resonance, engagement tanks, and your carefully crafted CTAs get ignored.
Before vs. MAGIC BOXES:
Before MAGIC BOXES
Manual personalization
Generic, unengaging content
Low open rates and weak CTAs
Ineffective mass messaging
Emails that don't resonate
With MAGIC BOXES
Automated personalization
Highly personalized content
Dramatically improved open rates and compelling CTAs
Tailored, individualized messages
Emails that connect and convert
MAGIC BOXES SUPERPOWERS
Transform your email marketing with hyper-personalized content for every recipient
Hyper-personalized outreach, at scale
Every recipient gets a message that feels like it was written just for them. Because it was.
Your brand's brain, baked in
We use your brand voice, knowledge, and product to generate content that actually sounds like you.
One prompt. Infinite outputs.
Write one simple prompt, and Closi will generate dynamic content per contact, in seconds.
Instant results, zero lag
Backed by ultra-fast LLMs. Whether you're sending to 500 or 500,000 — it just works.
SEE IT IN ACTION
Watch Magic Boxes create personalized content in real-time
Magic Boxes completely changed how we write emails. Our open and reply rates skyrocketed. It's like having 1,000 copywriters working for you.— An actual Closi user, probably named Jake
Ready to turn 1 prompt into 5,000 powerful emails?
Start using Magic Boxes and never send another generic message again.