Miestro email verification with BillionVerify
Miestro is an ecommerce platform for selling online courses, memberships, and digital products. Connecting it to BillionVerify lets you validate every new member's email address at signup — stopping bounces, disposable addresses, and typos before they pollute your subscriber list.
Why verify before the send
Unverified signups inflate your member count with addresses that will never receive a welcome email or renewal notice. BillionVerify filters out invalid, disposable, role-based, and catch-all addresses so your deliverability stays strong and your revenue metrics reflect real customers.
Ready-to-use n8n workflow
Import this workflow into n8n — it verifies every address with BillionVerify before Miestro sends, so only deliverable contacts are emailed. Install the BillionVerify community node first, then add your API key.
{
"name": "Verify emails before sending in Miestro + BillionVerify",
"nodes": [
{
"parameters": {},
"type": "n8n-nodes-base.manualTrigger",
"typeVersion": 1,
"position": [
240,
300
],
"name": "When clicking ‘Test workflow’"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "email-field",
"name": "email",
"value": "jane@example.com",
"type": "string"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
460,
300
],
"name": "Get contacts"
},
{
"parameters": {
"sendTo": "={{ $json.email }}",
"subject": "Message for Miestro contacts",
"message": "Replace this Gmail send with your Miestro node — only deliverable, verified contacts reach it.",
"options": {}
},
"type": "n8n-nodes-base.gmail",
"typeVersion": 2.1,
"position": [
900,
300
],
"name": "Send email",
"webhookId": "",
"credentials": {
"gmailOAuth2": {
"id": "",
"name": "Gmail account"
}
}
},
{
"parameters": {
"operation": "verify",
"email": "={{ $json.email }}",
"additionalOptions": {}
},
"type": "n8n-nodes-billionverify.billionVerify",
"typeVersion": 1,
"position": [
540,
300
],
"name": "Verify Email (BillionVerify)",
"credentials": {
"billionVerifyApi": {
"id": "",
"name": "BillionVerify account"
}
}
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "is-deliverable",
"leftValue": "={{ $json.is_deliverable }}",
"rightValue": "",
"operator": {
"type": "boolean",
"operation": "true",
"singleValue": true
}
}
]
}
},
"type": "n8n-nodes-base.if",
"typeVersion": 2,
"position": [
720,
300
],
"name": "IF deliverable"
}
],
"connections": {
"When clicking ‘Test workflow’": {
"main": [
[
{
"node": "Get contacts",
"type": "main",
"index": 0
}
]
]
},
"Get contacts": {
"main": [
[
{
"node": "Verify Email (BillionVerify)",
"type": "main",
"index": 0
}
]
]
},
"Verify Email (BillionVerify)": {
"main": [
[
{
"node": "IF deliverable",
"type": "main",
"index": 0
}
]
]
},
"IF deliverable": {
"main": [
[
{
"node": "Send email",
"type": "main",
"index": 0
}
],
[]
]
}
},
"settings": {
"executionOrder": "v1"
}
}Workflow templates with Miestro
Ready-to-use workflows that verify emails before Miestro sends.
How it works
- 1
Connect Miestro to BillionVerify via the n8n community node, Integrately one-click integration, or direct REST API call.
- 2
Trigger a verification whenever a new member registers or is imported into Miestro.
- 3
BillionVerify checks the address against SMTP, syntax, domain, disposable-email, and catch-all signals.
- 4
Receive a structured result — valid, invalid, risky, or catch-all — and use it to accept, flag, or reject the signup.
- 5
Keep your Miestro member list clean on an ongoing basis by scheduling periodic bulk verification runs.
When to use this
Clean member registrations
Validate email addresses the moment someone creates an account on Miestro. Catch typos and temporary inbox services before the user ever enters your funnel, ensuring your onboarding emails land in real inboxes.
Protect course launch campaigns
Before blasting a new course launch to your full member list, run addresses through BillionVerify to remove hard-bounce risks. Cleaner sends mean better inbox placement and higher open rates on your most important campaigns.
FAQ
Can BillionVerify check emails in real time at Miestro signup?
Yes. Using the REST API or n8n automation you can verify each address within seconds of submission, before the member is fully onboarded.
What types of bad addresses does BillionVerify catch?
It detects invalid syntax, non-existent mailboxes, disposable or temporary addresses, role accounts like info@ or support@, and risky catch-all domains.
Will this affect the signup experience for legitimate members?
API response times are typically under a second, so valid members flow through without any noticeable delay.
Verify emails in Miestro
Create a free account, grab your API key, and stop bounces before they happen.
Get started free