How Let’s Fearlessly Grow Helped Pepper Drive £397K in Revenue in 6 Months Using Mailforge & Warmforge

Let’s Fearlessly Grow (LFG) is a UK-based lead generation agency helping B2B brands build and run highly personalized outbound systems. They specialize in campaigns that look and feel 1:1 - while running at scale. To do that at the volume and quality their clients expect, they needed cold email infrastructure that could deliver at enterprise scale - without compromising deliverability, sender reputation, or campaign flexibility. They chose Mailforge and Warmforge to make it happen.

“Our clients don’t just want “lead gen.” They want booked meetings that come from messages so tailored and relevant, they feel impossible to ignore. That’s why everything we build, whether it’s a done-for-you campaign or internal infrastructure, is based on personalized signals, human-sounding AI copy, and clean, scalable cold email delivery powered by Mailforge.

Isabella Lee
Founder & CEO, LFG

Why Mailforge and Warmforge?

LFG supports fast-growing brands like Pepper and Hived, both of which needed outbound systems that could scale without getting flagged, blocked, or landing in spam. LFG needed infrastructure they could trust to power hundreds of mailboxes and maintain high deliverability, while supporting signal-based, AI-personalized campaigns. With Mailforge and Warmforge, agencies like LFG can confidently run high-volume campaigns without worrying about spam folders or blacklists.

“We use Mailforge to power the cold email infrastructure behind every campaign. Its distributed domain setup, inbox warming, and reputation monitoring mean our clients can scale without worrying about spam folders, blocks, or blacklists.”

Isabella Lee
Founder & CEO, LFG

The Results

With Mailforge and Warmforge in place, LFG helped Pepper go from zero to £397,161 in closed revenue in just six months - all through cold email.

For Hived, LFG used the same infrastructure to build an internal outbound system the team could run independently - no outside agency required.

Build Cold Email Infrastructure That Scales Without Breaking

Whether you're managing outreach for one brand or twenty, Mailforge and Warmforge give you the infrastructure to scale safely, warm properly, and deliver consistently - at any volume.
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