Overview

La Growth Machine can enrich your leads’ contact information.
By “enrichment,” we mean: identifying and verifying a prospect’s professional contact details, especially their email address.

Depending on your audience and the type of enrichment you choose, we identify and verify up to 70% of professional email addresses.

Here’s how it works!

Key benefits

Accuracy: cascading enrichment using 9 GDPR-compliant providers
Reliability: double email verification to protect your deliverability
Clarity: email scoring (valid, risky, not found)

Finding professional emails through enrichment

Professional email enrichment

When you import leads into an audience, you can enrich them to find their professional email address and other data.

With La Growth Machine’s professional email enrichment, you get:

Verified email addresses: cascading enrichment via 9 providers
Double email verification: improved deliverability protection
Email score: valid, risky, not found

Enrichment using the LinkedIn URL

If your leads have a LinkedIn URL, we can retrieve their first name, last name, and company name.

Once we collect this information, we generate and test multiple email permutations:

**{{firstname}}.{{lastname}}@{{companydomain.com}}
**{{firstname}}@{{companydomain.com}}
**{{first.letter.firstname}}{{lastname}}@{{companydomain.com}}
And many more…

Important: We never test emails by sending real messages.
We query the domain’s email server to ask: “Does this email exist?”

Enrichment without a LinkedIn URL

If you import a CSV file from your CRM without LinkedIn URLs, no worries.

What La Growth Machine does

If your CSV contains first name + last name + company name, that's enough for us to enrich the professional email address.

With our enrichment engine, a LinkedIn URL is not required to find a verified professional email.

You can enrich only this data using the Find Verified Email option.

Enrichment providers used

Our professional enrichment is powered by a cascading system using several top GDPR-compliant providers:
DropContact, Datagma, Hunter, Prospeo, and more.

“Risky” servers vs. non-“Risky” servers

Catch-all or “Risky” servers

The server always replies “yes”, even for nonexistent addresses.
This makes the email impossible to verify.
By default, La Growth Machine never provides unverified emails.
You can enable Risky emails in your settings if you want suggestions anyway.

Non catch-all or non-“Risky” servers

The server genuinely responds “yes” or “no”.
We then test dozens of permutations until we find the correct existing address.

Note: According to DropContact, around 30% of servers are catch-all (these are the ones flagged as “risky”).

The larger the company, the higher the likelihood.

This means that for enterprise leads or ABM, you may get fewer verified emails since the entire domain blocks verification.

In these cases, enabling “Risky” emails can help.

Not perfect, but still very effective!

Why La Growth Machine does not share contacts between users

Some tools rely on a shared contact database.
La Growth Machine does not do this—and never will.

Here’s why:

GDPR compliance: sharing personal data would be problematic
Confidentiality: your data should never benefit your competitors
Transparency: it’s easier to explain to a prospect how their email was obtained (server test, LinkedIn connection, etc.)

This approach may result in a slightly lower enrichment rate compared to less compliant tools, but it is safer, more transparent, and more reliable.

Want to know more about how we enrich data? Read-on :

FAQs

What do the valid, risky, and not found statuses mean?

After enrichment, La Growth Machine returns one of three email statuses for every lead. The status tells you how confident the waterfall is in the mailbox, and it decides who gets contacted by email.

Valid: the mailbox was verified and can accept mail. Sendable by default.
Risky: an address was found but could not be fully verified, for example on a catch-all server. Deliverable in many cases, higher bounce risk.
Not found: no professional email was found.

Note: by default, La Growth Machine only sends to Valid addresses to protect your sender reputation.

How to send to risky addresses

If you accept the extra bounce risk on a given campaign:

Open the campaign
Go to the Settings tab
Enable Send to risky emails
Save the campaign

Important: keep an eye on your bounce rate. The recommended target is below 5%. Between 5% and 10% we flag it as a warning. Above 10%, pause the campaign and clean the audience before resuming.

Tip: if more than 40% of your audience has a risky status, re-run enrichment or trim the audience rather than blanket-sending.

How does email verification work without sending a message?

We query the email server to confirm whether the address exists—no email is ever sent.

Why am I not getting emails for some large companies?

Large companies often use catch-all (“risky”) servers, which block verification.

Can I enable “Risky” emails?

Yes, you can enable them in your campaign settings to receive unverified suggestions.

Can I enrich without a LinkedIn URL?

Yes. As long as you provide first name, last name, and company name, we can attempt email enrichment.

Do you share contact data across users?

No. For GDPR compliance and confidentiality reasons, each user’s enriched data remains private.

Does a risky email always bounce?

No. Risky means the mailbox could not be fully verified, not that it is dead. Many risky addresses are deliverable, but the risk is higher than for valid ones.

Can I toggle risky sending per campaign?

Yes. The toggle is set at the campaign level, so you can keep it on for a warm audience and off for a cold one.

Will a not found status block my campaign?

No. The lead keeps running on the other channels configured in your sequence. Only the email step is skipped.

How does La Growth Machine enrich professional emails?