Newton Increased Their Email Response Rate by 156% With One Super Simple Change (You Can Apply It Today)

Sometimes, growth doesn’t come from doing more — it comes from doing less.

That’s what Karthik Suroju, an email marketer at Newton, discovered when he tested a shockingly simple change in their email outreach strategy. No fancy automations. No expensive tools.

Just one tweak.

They stopped sending HTML emails and switched to plain-text emails.

The Results?

+156% increase in email response rate.

And nothing else changed — same content, same list, same send times.

The difference? Plain-text felt real.

Why Plain-Text Emails Work So Well:

  1. They feel more personal and human.
    People are flooded with overly designed emails that scream “marketing.” Plain-text feels like a message from a colleague, not a campaign.

  2. They get through more spam filters.
    HTML-heavy emails often land in the Promotions tab or Spam folder. Plain-text improves deliverability.

  3. They’re easier to read on mobile.
    Clean, no-nonsense formatting works better across devices and screen sizes.

  4. They reduce decision fatigue.
    No distractions, no buttons, no branding — just one clear message and one call to action.

When to Use This Strategy:

  • Cold outreach
  • Product announcements
  • Partnership or PR requests
  • Re-engagement emails
  • Customer success check-ins

Basically, any time you want a response, not just a read.

Bonus Tip: Write Like a Human

Even with plain-text, your tone matters. Write like you’re sending a note to a friend — short, clear, and conversational.
Examples:

  • “Quick question…”
  • “Thought you might find this useful…”
  • “Mind if I send more details?”

You don’t need HTML to be effective.
You need clarity, sincerity, and a message worth replying to.

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