â All E-commerce
Sharetribe email verification with BillionVerify
Sharetribe is a marketplace platform for building peer-to-peer and B2C online marketplaces. Integrating BillionVerify ensures every seller and buyer email on your marketplace is real, reducing fake accounts and keeping your transactional emails out of the spam folder.
Why verify before the send
Marketplace fraud often starts with a disposable or fake email. By verifying addresses at signup, Sharetribe operators protect their seller and buyer communities, reduce fraudulent listings, and ensure important transactional emailsâorder confirmations, payment receipts, dispute notificationsâactually reach their recipients.
Ready-to-use n8n workflow
Import this workflow into n8n â it verifies every address with BillionVerify before Sharetribe sends, so only deliverable contacts are emailed. Install the BillionVerify community node first, then add your API key. Adapted from this n8n template
verify-emails-in-sharetribe.json
{
"name": "Send admin email alerts for paid Sharetribe transactions with Gmail + BillionVerify",
"nodes": [
{
"id": "6d8c8436-38be-4c63-ad02-545a3a33c0b1",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
2256,
176
],
"parameters": {
"width": 480,
"height": 864,
"content": "## [template] Admin Email on New Paid Transaction\n\n### How it works\n\nThis workflow monitors Sharetribe transaction events and filters for transactions that have just moved from pre-payment into a confirmed paid state. When a qualifying transaction is found, it gathers the transaction details and marketplace name, formats the relevant fields, and sends an admin email notification through Gmail.\n\n### Setup steps\n\n- Configure the Sharetribe Trigger with the correct Sharetribe credentials and event subscription for transaction transitions.\n- Configure the Sharetribe action nodes to use the same marketplace credentials and ensure they can read transactions, transitions, and marketplace metadata.\n- Set up the Gmail credential for the admin email sender account.\n- Review the IF node conditions so they match the exact Sharetribe transition names used by the marketplace.\n- Update the Gmail node recipient, subject, and message body for the admin notification.\n\n### Customization\n\nYou can adjust the fields collected in the Set node, change the paid-transition conditions, or modify the email template and recipients to match the marketplaceâs operational process."
},
"typeVersion": 1
},
{
"id": "f9c778d2-fd99-4ab1-85d0-9dd440092f84",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
2816,
176
],
"parameters": {
"color": 7,
"width": 512,
"height": 320,
"content": "## Trigger initial filter\n\nStarts when Sharetribe emits a transaction event and checks whether the previous transition was the expected pre-payment state before continuing."
},
"typeVersion": 1
},
{
"id": "846b08f8-f709-4a4d-86aa-bcf6116b7916",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
3456,
208
],
"parameters": {
"color": 7,
"width": 832,
"height": 304,
"content": "## Verify paid transaction\n\nRetrieves the latest transition details, confirms that payment has been completed, and then fetches the full transaction record for the paid transaction."
},
"typeVersion": 1
},
{
"id": "cef5d95e-3b6f-4f29-9e4f-49bc44ce5d4c",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
4416,
208
],
"parameters": {
"color": 7,
"width": 832,
"height": 304,
"content": "## Prepare and email admin\n\nGets the marketplace name, organizes the transaction and participant fields needed for the message, and sends the admin notification email through Gmail."
},
"typeVersion": 1
},
{
"id": "375bfdef-ec59-43b1-bf77-30d277f435ff",
"name": "When New Sharetribe Event",
"type": "n8n-nodes-sharetribe.sharetribeTrigger",
"maxTries": 3,
"position": [
2864,
336
],
"parameters": {
"simplify": false,
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
},
"eventTypes": [
"transaction/transitioned"
],
"eventAttributes": [
"resourceId",
"previousValues"
]
},
"credentials": {
"sharetribeOAuth2Api": {
"id": "credential-id",
"name": "Sharetribe Credential"
}
},
"retryOnFail": true,
"typeVersion": 1,
"waitBetweenTries": 2000
},
{
"id": "b8aeb9e3-f6c5-4b7b-a60a-706da1d63815",
"name": "Check Pre-payment Transition",
"type": "n8n-nodes-base.if",
"position": [
3184,
336
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 1,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "006c0a63-71b0-44a6-8868-65ac81f9f2ba",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.attributes.previousValues.attributes.lastTransition }}",
"rightValue": "transition/request-payment"
}
]
}
},
"typeVersion": 2
},
{
"id": "d91cf0d7-ae15-41d0-ba49-c0453758ebfe",
"name": "Fetch Last Transition",
"type": "n8n-nodes-sharetribe.sharetribe",
"maxTries": 3,
"position": [
3504,
336
],
"parameters": {
"resource": "transaction",
"simplify": false,
"transactionId": "={{ $json.attributes.resourceId }}",
"transactionFields": [
"lastTransition"
]
},
"credentials": {
"sharetribeOAuth2Api": {
"id": "credential-id",
"name": "Sharetribe Credential"
}
},
"retryOnFail": true,
"typeVersion": 1,
"waitBetweenTries": 2000
},
{
"id": "a4ec5f51-e83e-44e1-8b4e-7592a3f15690",
"name": "Check Payment Confirmation",
"type": "n8n-nodes-base.if",
"position": [
3824,
336
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 1,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "006c0a63-71b0-44a6-8868-65ac81f9f2ba",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.lastTransition }}",
"rightValue": "transition/confirm-payment"
}
]
}
},
"typeVersion": 2
},
{
"id": "9bb5f1ce-9f74-4730-b24c-894a79112bce",
"name": "Fetch Marketplace Name",
"type": "n8n-nodes-sharetribe.sharetribe",
"maxTries": 3,
"position": [
4464,
336
],
"parameters": {
"resource": "marketplace"
},
"credentials": {
"sharetribeOAuth2Api": {
"id": "credential-id",
"name": "Sharetribe Credential"
}
},
"executeOnce": true,
"retryOnFail": true,
"typeVersion": 1,
"waitBetweenTries": 2000
},
{
"id": "bddc5d5b-27ef-4502-999c-8dea9dd06714",
"name": "Prepare Email Fields",
"type": "n8n-nodes-base.set",
"position": [
4784,
336
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "524fbf5c-9670-408c-a887-cce821ca1f65",
"name": "transaction.id",
"type": "string",
"value": "={{ $('Retrieve Transaction Details').item.json.id }}"
},
{
"id": "f9cc083d-d6d1-494c-96b6-a6747c73f12e",
"name": "customer.id",
"type": "string",
"value": "={{ $('Retrieve Transaction Details').item.json.customer.id }}"
},
{
"id": "9994275b-91b0-42a9-9c02-4c5db3fba497",
"name": "provider.id",
"type": "string",
"value": "={{ $('Retrieve Transaction Details').item.json.provider.id }}"
},
{
"id": "a5af0ae3-ecc3-452d-b1f9-6a50a50a1641",
"name": "provider.profile.firstName",
"type": "string",
"value": "={{ $('Retrieve Transaction Details').item.json.provider.profile.firstName }}"
},
{
"id": "e29e078e-ffbb-4f26-b4cc-075941aefb7a",
"name": "customer.profile.firstName",
"type": "string",
"value": "={{ $('Retrieve Transaction Details').item.json.customer.profile.firstName }}"
},
{
"id": "7290b7b7-1e53-4c5f-88f6-cda0fd02779d",
"name": "listing.title",
"type": "string",
"value": "={{ $('Retrieve Transaction Details').item.json.listing.title }}"
},
{
"id": "1c007860-e852-4e99-a706-d77d5d1675db",
"name": "operatorRevenue",
"type": "object",
"value": "={{ {\"amount\": $('Retrieve Transaction Details').item.json.payinTotal.amount - $('Retrieve Transaction Details').item.json.payoutTotal.amount, \n\"currency\": $('Retrieve Transaction Details').item.json.payoutTotal.currency} }}"
},
{
"id": "287b88f9-5c52-4247-bfec-e34b03ae4715",
"name": "marketplaceName",
"type": "string",
"value": "={{ $json.name }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "7a30bf0d-8b95-4bd9-8939-b250ba6a87af",
"name": "Send Admin Payment Email",
"type": "n8n-nodes-base.gmail",
"position": [
5104,
336
],
"webhookId": "797d9401-ac4d-400e-9bc1-9f351fcd8c46",
"parameters": {
"sendTo": "user@example.com",
"message": "=New Paid Transaction\n\nHey There,\n\nA transaction payment has been confirmed on {{ $json.marketplaceName }} for \"{{ $json.listing.title }}\".\n\nMarketplace revenue: {{ new Intl.NumberFormat('en-US', { style: 'currency', currency: $json.operatorRevenue.currency }).format($json.operatorRevenue.amount / 100) }}\n\nView transaction details: https://console.sharetribe.com/transactions/{{ $json.transaction.id }}",
"options": {},
"subject": "=New paid transaction for {{ $json.marketplaceName }}",
"emailType": "text"
},
"credentials": {
"gmailOAuth2": {
"id": "credential-id",
"name": "Gmail Credential"
}
},
"typeVersion": 2.1
},
{
"id": "ce83dd17-5e5b-4436-a2af-ba172979a5a3",
"name": "Retrieve Transaction Details",
"type": "n8n-nodes-sharetribe.sharetribe",
"maxTries": 3,
"position": [
4144,
336
],
"parameters": {
"resource": "transaction",
"simplify": false,
"userFields": [
"firstName",
"email",
"lastName"
],
"listingFields": [
"title"
],
"transactionId": "={{ $json.id }}",
"transactionFields": [
"booking",
"createdAt",
"customer",
"lastTransition",
"lastTransitionedAt",
"payinTotal",
"payoutTotal",
"state",
"provider",
"listing"
]
},
"credentials": {
"sharetribeOAuth2Api": {
"id": "credential-id",
"name": "Sharetribe Credential"
}
},
"retryOnFail": true,
"typeVersion": 1,
"waitBetweenTries": 2000
},
{
"parameters": {
"operation": "verify",
"email": "={{ $json.email || $json.Email }}",
"additionalOptions": {}
},
"type": "n8n-nodes-billionverify.billionVerify",
"typeVersion": 1,
"position": [
4744,
336
],
"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": [
4924,
336
],
"name": "IF deliverable"
}
],
"connections": {
"Prepare Email Fields": {
"main": [
[
{
"node": "Verify Email (BillionVerify)",
"type": "main",
"index": 0
}
]
]
},
"Fetch Last Transition": {
"main": [
[
{
"node": "Check Payment Confirmation",
"type": "main",
"index": 0
}
]
]
},
"Fetch Marketplace Name": {
"main": [
[
{
"node": "Prepare Email Fields",
"type": "main",
"index": 0
}
]
]
},
"When New Sharetribe Event": {
"main": [
[
{
"node": "Check Pre-payment Transition",
"type": "main",
"index": 0
}
]
]
},
"Check Payment Confirmation": {
"main": [
[
{
"node": "Retrieve Transaction Details",
"type": "main",
"index": 0
}
]
]
},
"Check Pre-payment Transition": {
"main": [
[
{
"node": "Fetch Last Transition",
"type": "main",
"index": 0
}
]
]
},
"Retrieve Transaction Details": {
"main": [
[
{
"node": "Fetch Marketplace Name",
"type": "main",
"index": 0
}
]
]
},
"Verify Email (BillionVerify)": {
"main": [
[
{
"node": "IF deliverable",
"type": "main",
"index": 0
}
]
]
},
"IF deliverable": {
"main": [
[
{
"node": "Send Admin Payment Email",
"type": "main",
"index": 0
}
],
[]
]
}
},
"settings": {}
}Workflow templates with Sharetribe
Ready-to-use workflows that verify emails before Sharetribe sends.
How it works
- 1
A new user registers on your Sharetribe marketplace.
- 2
An n8n workflow or Integrately automation captures the submitted email address.
- 3
BillionVerify checks the address for validity, disposable domains, role accounts, and catch-all status via its REST API.
- 4
If the email fails verification, the workflow triggers a re-verification prompt or flags the account for review.
- 5
Clean, verified emails proceed normallyâkeeping your marketplace community trustworthy.
When to use this
Prevent fake seller accounts
Validate email addresses the moment a new vendor registers on your marketplace. Blocking disposable and invalid emails stops fraudulent sellers before they can list products or harm buyer trust.
Improve transactional email delivery
Clean out invalid addresses from your user base so that order confirmations, review requests, and payout notifications consistently land in inboxes instead of bouncing or triggering spam filters.
Keep your buyer list healthy
Verify buyer emails during checkout or registration to reduce bounce rates in your marketing campaigns and ensure promotional offers reach genuinely engaged shoppers.
FAQ
Can I verify emails without coding?
Yes. Use the Integrately 1-click integration to connect Sharetribe events to BillionVerify in minutes, with no coding required.
Does BillionVerify detect disposable email addresses?
Yes. BillionVerify identifies addresses from known disposable and temporary email providers and flags them so you can block or challenge those registrations.
Will verification slow down my marketplace signup flow?
BillionVerify's API typically responds in under a second, making it suitable for real-time verification at the point of registration without noticeable delay.
What happens with catch-all domains?
Catch-all addresses accept all mail at a domain, making delivery uncertain. BillionVerify flags them so you can decide whether to allow, challenge, or exclude them from campaigns.
Verify emails in Sharetribe
Create a free account, grab your API key, and stop bounces before they happen.
Get started free