How we book 5–10 extra SQLs each month using a hidden LinkedIn feature

Most outbound teams are leaving pipeline on the table.

They build a solid lead list.

They fired off 150 InMails on LinkedIn Sales Navigator.

Then, they wait.

No replies. No meetings. No pipeline.

And then what happens?

They start pitching harder. More volume. Less targeting. Which tanks reply rates and damages their brand.

We were there once too.

Until we found a hidden LinkedIn feature that gave us 800 extra chances.

No extra cost. No extra risk.

Just more opportunity for smart outbound.

In this week’s edition of The Playbook, I’m breaking down the exact system we use to book 5–10 extra sales-qualified leads every month using Open Accounts on LinkedIn.

THE PLAY

Unlocking LinkedIn’s unfiltered outbound channel

There’s no official Sales Navigator filter for Open Accounts. No setting. No checkbox. No obvious way to find them.

But they’re there.

These are LinkedIn profiles that accept InMails from anyone, even if you don’t share a group or a premium license.

LinkedIn gives you 800 free InMails to these accounts, but most teams never use them.

We’ve built a repeatable system for finding, messaging, and converting them.

Here’s how it works.

Step 1: Build a high-intent lead list

Open Accounts are only valuable if they match your ICP. We start by pulling 600+ leads using signals like:

Job changes in the last 90 days

Recent posting activity on LinkedIn

Funding events or new roles

These are high-probability leads. They’re more likely to respond to outreach and more likely to be looking for solutions.

Step 2: Identify Open Accounts

This part used to be a massive pain.

LinkedIn doesn’t let you filter by Open Account status. So we used to scroll through profiles manually, looking for the “Open to InMail” badge.

Now we’ve built an internal process that scans and flags which profiles are Open Accounts.

It saves hours.

And gives us a predictable pool of targets every month.

Step 3: Write messaging that earns replies

The trick to using Open InMails is not to overthink the copy. We lead with clarity and relevance.

Here’s a version that consistently gets responses:

"Hi {Name}, we’ve been helping {Persona} drive {Result}. {Client Name} plugged in our system and saw {Outcome} in {Timeframe}. Know anyone who’d be interested, yourself included?"

It’s conversational, not salesy.

And it gives them an easy way to say yes, refer someone else, or ignore if it’s not a fit.

Step 4: Personalize at scale with Spintax

Once we know the structure works, we load the message into Spintax. That allows us to dynamically adjust for:

First names

Company names

Pain points or outcomes

We’re not sending robotic messages. We’re scaling personalization without sacrificing time.

Step 5: Automate and execute

With the list and messaging ready, we push into automation and start sending.

The goal is 300–400 Open InMails a week.

On average, this adds 5–10 SQLs per month for each client profile we run it from.

Step 6: Optimize based on feedback

Once messages go out, we track responses, A/B test subject lines, and tweak the body based on:

Which pain points resonate

Which value props generate interest

Which CTAs lead to calls

We don’t scale until we’ve found message-market fit.

But once we do, we run the same system across multiple client profiles for compounding results.

WHY THIS WORKS

Most outbound strategies are stuck fighting for attention in overused channels.

This gives you a clean lane to qualified leads, using a pool of prospects that most teams ignore.

There’s no noise. No gatekeepers. No unnecessary limits.

Just a smarter way to do outbound.

STEAL THIS PLAY

→ Build targeted lead lists around live signals, not static titles.

→ Use Open InMails to bypass the 150-message cap.

→ Personalize at scale, but keep it human.

→ Test until you find what lands.

→ Scale it across profiles.

The Final Word

This is one of those plays that’s hiding in plain sight. It doesn’t replace your outbound motion. It multiplies it.

Want me to audit your LinkedIn outbound setup?

Drop me an email. I’ll take a look and send back a few ideas you can run with.

Until next week,

Luke
CEO, Atticus