Clean HubSpot Email Lists.
Stop Paying for Dead Contacts.
B2B CRM databases decay by 22.5% every year. Scrubbing your HubSpot contacts with MailVeri before your monthly billing date downgrades invalid, disposable, and abandoned contacts to free Non-Marketing status — while preventing HubSpot's 3% bounce suspension.
The Hidden Cost of Unverified HubSpot Contacts
Leaving unverified, aged, or disposable contacts inside HubSpot Marketing Hub penalizes your RevOps budget twice.
Marketing Contact Tier Bloat
HubSpot bills by your total Marketing Contact tier ($15 to $50+ per 1,000 contacts/month), whereas up to 1,000,000 Non-Marketing Contacts are stored for $0. Cleaning 20,000 dead contacts saves thousands per year.
3% Hard Bounce Lockouts
HubSpot's deliverability system flags accounts that exceed a 3% hard bounce rate on marketing broadcasts and suspends email sending privileges if bounces cross 5%.
Inbound Lead Form Pollution
Competitors and bots submit burner emails (DISPOSABLE) on gated PDFs, webinar forms, and demo requests, triggering automated nurture bounces and skewing MQL attribution.
Two Ways to Clean & Protect HubSpot CRM
Run a pre-billing bulk audit on existing contacts and add a real-time verification gate for new inbound leads.
Workflow A: Pre-Billing Bulk Marketing Contact Audit
Run 48 hours before your monthly HubSpot renewal date to downgrade dead contacts before the 1st of the month
Export Active List
In HubSpot, filter contacts where Marketing contact status = Marketing contact and export as CSV (including Record ID and Email).
Verify with MailVeri
Upload the CSV to the MailVeri Dashboard. MailVeri appends mailveri_status while preserving every Record ID.
Set as Non-Marketing
Re-import by Record ID and bulk-update INVALID, DISPOSABLE, and FULL_INBOX contacts to Non-Marketing Contact.
Validate every new contact on creation before setting them as a billable Marketing Contact or enrolling them in automated welcome sequences:
// HubSpot Operations Hub — Custom Code Workflow Action (Node.js)
exports.main = async (event, callback) => {
const email = event.inputFields['email'];
const response = await fetch('https://api.mailveri.com/v1/verify-mail/', {
method: 'POST',
headers: {
'Authorization': `Bearer ${process.env.MAILVERI_API_KEY}`,
'Content-Type': 'application/json',
},
body: JSON.stringify({ email }),
});
const data = await response.json();
callback({
outputFields: {
mailveri_status: data.status,
is_disposable: data.is_disposable,
is_catch_all: data.is_catch_all,
safe_for_marketing: data.status === 'VALID',
},
});
};POST https://api.mailveri.com/v1/verify-mail/
Authorization: Bearer YOUR_MAILVERI_API_KEY
Content-Type: application/json
{
"email": "{{contact.email}}"
}{
"error": 0,
"message": "Verified [email protected] successfully",
"status": "VALID",
"email": "[email protected]",
"mail": "[email protected]",
"is_disposable": false,
"is_role_account": false,
"is_catch_all": false,
"is_full_inbox": false,
"balance": 78450
}Related Guides for HubSpot Teams
How to Clean & Verify HubSpot & Pipedrive Email Lists (Stop Paying for Dead Marketing Contacts)
Full breakdown of HubSpot Marketing Contact billing rules and status-to-CRM action mappings.
How to Block Disposable Emails in Supabase, Clerk & Next.js Auth
Stop burner emails at the signup form before they sync into your HubSpot CRM.
How to Verify Emails in Zapier: Step-by-Step Automation Guide
Connect HubSpot form submissions to MailVeri via Zapier in under 5 minutes.
Frequently Asked Questions
Common questions about cleaning HubSpot lists and reducing Marketing Contact bills.
Should I delete invalid contacts in HubSpot or set them as Non-Marketing?
For net-new fake or disposable form submissions, delete them immediately. For historical customers or closed-lost deals whose email addresses have decayed (INVALID), keep the contact record for deal attribution and set Marketing contact status = Non-marketing contact so you pay $0 for storage.
When does HubSpot apply Non-Marketing Contact downgrades?
HubSpot applies Non-Marketing Contact downgrades on the next monthly assessment date (typically the 1st of the month). Running your MailVeri bulk audit 48 hours before month-end ensures your lower contact count takes effect on your very next invoice.
Audit your HubSpot CRM before your next renewal
Sign up in 30 seconds and get 1,000 free verification credits to test your HubSpot contact export.