Finding Signals: Email Personalization

What separates outbound email that gets replies from outbound email that gets deleted

A signal is a specific, observable thing about a prospect that tells you they might have the problem you solve right now.

Signals are what separate outbound email that gets replies from outbound email that gets deleted. Without a signal your opening line is either a vague compliment like "I've been following your work and I'm impressed" or a fabricated relevance like "As a company in your industry." Both are immediately identified as template outreach.

With a signal your opening line is specific, credible, and relevant because it is based on something real.

The 5 Signal Types

Signal 1: LinkedIn Activity

What to look for: a post from the past 2 to 4 weeks that mentions a pain point, a growth milestone, a challenge, or a process they changed. A comment they left on someone else's post about a problem your work solves. Or a job posting they published which signals growth, new needs, or changing operations.

Where to find it: search their name on LinkedIn and check the Activity section on their profile. It takes 2 minutes.

What to do with it: quote or reference the post directly with something like "I saw your post last week about..."

Signal 2: New Hire or Role Change

What to look for: they recently hired someone for a role that suggests a new direction such as a first marketing hire meaning they are starting to invest in growth. They themselves changed jobs in the past 6 months bringing a new role, new mandate, and new problems to solve. Or they are posting about growing the team.

Where to find it: Apollo has a Job Change filter. LinkedIn shows new position signals. Job boards they post on.

What to do with it: use the new mandate signal because people new to a role are highly motivated to make visible changes quickly.

Signal 3: Company Milestone

What to look for: a funding announcement meaning they have money to spend and pressure to grow, an expansion to a new location, market, or product line, press coverage or an award meaning they are visible and care about their brand, or an anniversary where they may be rebranding or reflecting on systems.

Where to find it: their company page on LinkedIn, press releases, and Crunchbase for funding data.

What to do with it: reference the milestone then connect it to what it probably means operationally for them right now.

Signal 4: Published Content

What to look for: a blog post or newsletter article that reveals a challenge or opinion, a podcast episode where they talked about something relevant to your work, or a YouTube video about their business since many small business owners document their journey.

Where to find it: their website blog, LinkedIn articles, Substack, and Beehiiv.

What to do with it: show you read it by quoting something specific and connecting it to what you noticed.

Signal 5: Website or Tech Stack Observation

This is the most powerful signal for Claude Code builders because you can spot it in 60 seconds.

What to look for: an outdated booking system such as a Calendly link in a nav bar or a paper form PDF, a slow-loading website where you check PageSpeed Insights and a score under 50 is a conversation starter, a missing feature that competitors have such as a checkout, member portal, or appointment system, a website still on a basic template with no customisation, or a broken or manual workflow made visible somewhere on the site.

Where to find it: their website. Go there and look. BuiltWith.com or the Wappalyzer browser extension shows their tech stack.

What to do with it: name the specific thing you noticed and make it clear you looked, not that you ran a bulk audit.

Finding Signals at Scale: The Batch Research Prompt

For each week's list of 20 prospects use this Claude prompt to research signals quickly:

• I have a list of 20 prospects I want to cold email this week. Help me find
• a relevant signal for each one.

For each prospect below go to their LinkedIn profile and their company

website. Find ONE specific observable thing that connects to the problem

my work solves.

What I solve: [FROM SALES.MD — your offer in one sentence]

Typical signal: [Give an example of a good signal you have found before]

Prospects:

1. [Name], [Title], [Company], [Website URL], [LinkedIn URL if available]
2. [Name], [Title], [Company], [Website URL], [LinkedIn URL if available]

...

For each one give me:

• Signal type (LinkedIn post, new hire, milestone, content, or tech stack)
• What you found (specific detail)
• One-sentence hook I could use in a first email based on this signal

Flag any where you could not find a clear signal — I will research those

manually or remove them from the list.

Important: Claude cannot browse the web in real time unless you have a tool-enabled version. If using standard Claude, copy and paste relevant LinkedIn post text or website observations to give Claude the material to work with.

The One-Signal Rule

Every cold email you send must contain exactly one signal. Not zero and not three.

Zero signals equals a generic template that gets deleted. One signal equals proof you looked and earns consideration. Three signals feels like you were stalking them and gets unnerved.

Write one specific thing. Build the rest of the email around that one thing.

Signals to Avoid

Compliments that are not observations: "I've been following your work and I love what you're doing" is not a signal. It is a platitude that proves nothing.

Industry-level statements: "Companies in the [INDUSTRY] space are increasingly..." is a trend statement and not an observation about them. Anyone could have sent it.

Fabricated urgency: "Now is the perfect time to..." — if you do not have a real reason, do not invent one.

Stale signals: a post from 8 months ago is not timely. A funding round from 2 years ago is not fresh. Signals should be recent, ideally within 30 to 90 days.

Adding to EMAIL.md

## Signals I Look For

Signal types I use:

- LinkedIn Activity: [WHAT YOU TYPICALLY LOOK FOR]
- New hire or role change: [WHAT YOU LOOK FOR]
- Company milestone: [WHAT YOU LOOK FOR]
- Published content: [WHAT YOU LOOK FOR]
- Website or tech stack: [WHAT YOU LOOK FOR]
Best signal example so far: [PASTE YOUR STRONGEST EXAMPLE]

Your Action Right Now

Open your 20-prospect CSV from the previous lesson. For each row spend 3 to 4 minutes on their LinkedIn and website. Fill in the Signal column with one specific thing per person.

If you cannot find a signal for someone in 4 minutes remove them from this campaign. A prospect with no visible signal is harder to write to and less likely to reply.