G
GoHighLevel Email Verification Integration
Clean your GoHighLevel contacts with Mailthentic to cut bounces and protect sender reputation. A native GoHighLevel connector is available on request, and you can verify your list today.
Native connectors are built on request for customers on a paid plan.
Why verify your GoHighLevel lists
GoHighLevel pulls contacts from funnels, forms, ad campaigns and imported client lists, so bad addresses enter constantly and often go unnoticed until a workflow starts sending. Agencies run many sub-accounts on shared sending infrastructure, which means one client's dirty list can hurt deliverability for every other client too. Verifying before contacts reach a campaign keeps bounce rates low and your agency's reputation clean.
GoHighLevel is an all-in-one CRM and marketing platform for agencies, combining funnels, pipelines, SMS and email campaigns across many sub-accounts. Contacts arrive from every funnel and form, and quality varies wildly.
How GoHighLevel verification works
Verify your GoHighLevel list today in three steps.
Export your GoHighLevel contacts as a CSV
In the GoHighLevel sub-account, open Contacts, apply the smart list or filter you want to clean, and export it as a CSV.
Upload the CSV to Mailthentic's bulk verifier
Drop the file into the bulk verifier. Every address is checked for syntax, domain and MX validity, disposable and catch-all domains, role accounts and risk.
Download the clean list and import it back into GoHighLevel
Re-import verified contacts and tag or remove the rest. Want to skip the CSV round trip? Paid customers can request a native GoHighLevel integration and our team builds it for you.
Want to skip the CSV step? Request the native GoHighLevel integration and our team builds it for you.
Benefits for GoHighLevel users
Fewer hard bounces across sub-accounts
Remove invalid addresses before a GoHighLevel workflow fires so bounce rates stay inside safe limits for every client.
Protect shared sending reputation
Agencies send many clients through the same infrastructure. One bad list can drag down deliverability for all of them.
Save email and SMS spend
GoHighLevel bills for sends. Every email delivered to a dead mailbox is budget with no possible return.
Better inbox placement
Clean contact data lifts engagement, and engagement is what keeps your campaigns out of the spam folder.
Cleaner pipelines and reporting
Funnel conversion numbers only mean something when the contacts behind them are real people with real inboxes.
GDPR aligned processing
Verification runs under a GDPR aligned process with a DPA available on request, which matters when you process client data.
What Mailthentic checks
Every GoHighLevel contact runs through the full verification stack.
Syntax validation
Catches typos and malformed addresses that funnels, forms and ad lead forms accept without complaint.
Domain and MX record checks
Confirms the contact's domain exists and publishes mail servers, so your workflow has somewhere to deliver.
Disposable email detection
Flags throwaway addresses that lead magnets and free offers attract, before they enter a client's nurture campaign.
Catch-all domain detection
Identifies domains that accept every address, so you can see which GoHighLevel contacts carry unresolved bounce risk.
Role-based address flagging
Marks info@, admin@ and support@ addresses, which rarely engage with marketing workflows and raise complaint risk.
Risky and invalid address detection
Separates dead mailboxes from risky ones so you can purge the first and quarantine the second per sub-account.
GoHighLevel use cases
Onboarding a new client list
Verify the client's existing contacts before importing them, so their old data never damages your agency's sending reputation.
Cleaning funnel and ad form leads
Paid lead forms attract fake and mistyped addresses. Verify them before the nurture workflow starts sending.
Bulk cleanup before a campaign
Verify a smart list before a broadcast so a single big send does not spike bounces across the sub-account.
Protecting deliverability across sub-accounts
Run periodic verification on every account so no single client's list quality hurts the others.
Frequently asked questions
Is there a native GoHighLevel integration?
How do I verify my GoHighLevel list today?
Will this lower my bounce rate?
How are catch-all domains handled?
Is my client contact data safe?
How do credits work across sub-accounts?
Clean your GoHighLevel list today
New accounts get 1,000 free verification credits. CRM integrations are included with any paid plan.