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Drip email verification with BillionVerify
Drip is a marketing automation platform built for e-commerce brands, helping them send personalized email and SMS campaigns. Adding BillionVerify to your Drip workflows means every subscriber address is verified before it enters your list, cutting bounce rates and protecting the sender reputation that powers your revenue-driving campaigns.
Why verify before the send
E-commerce email programs live or die by deliverability. A list filled with invalid, disposable, or catch-all addresses drives up bounce rates, triggers spam filters, and erodes the domain reputation that gets your promotional emails into the inbox. BillionVerify removes these risks at the point of sign-up, before Drip ever sends a single message.
Ready-to-use n8n workflow
Import this workflow into n8n — it verifies every address with BillionVerify before Drip 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-drip.json
{
"name": "Send timezone-aware drip emails with Gmail and Google Sheets using daily limits + BillionVerify",
"nodes": [
{
"id": "ab68acee-89bb-46ca-8639-beb8b3040e75",
"name": "Trigger EU_UK 10:00 UTC",
"type": "n8n-nodes-base.scheduleTrigger",
"position": [
-608,
304
],
"parameters": {
"rule": {
"interval": [
{
"field": "cronExpression",
"expression": "0 10 * * 1-5"
}
]
}
},
"typeVersion": 1.2
},
{
"id": "10a49736-3249-4683-ac02-91cdd36f2683",
"name": "Determine Group",
"type": "n8n-nodes-base.code",
"position": [
-416,
512
],
"parameters": {
"jsCode": "// Maps the current UTC hour to an audience region plus a daily send cap.\n// Ranges are non-overlapping so each trigger hits exactly one group.\nconst hour = new Date().getUTCHours();\nlet group, daily_limit;\n\nif (hour >= 9 && hour < 13) {\n // EU & UK working hours (morning Europe)\n group = 'EU_UK';\n daily_limit = 45;\n} else if (hour >= 14 && hour < 20) {\n // North America working hours (morning/midday NA)\n group = 'NA';\n daily_limit = 90;\n} else {\n // Remaining hours cover Australia / Asia-Pacific\n group = 'AU';\n daily_limit = 15;\n}\n\nreturn [{ json: { group, daily_limit } }];\n"
},
"typeVersion": 2
},
{
"id": "6693ed50-b9f3-47a9-8848-38f56e7a2be4",
"name": "Read Contacts",
"type": "n8n-nodes-base.googleSheets",
"position": [
-160,
512
],
"parameters": {
"options": {},
"sheetName": {
"__rl": true,
"mode": "list",
"value": "",
"cachedResultUrl": "",
"cachedResultName": ""
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "",
"cachedResultUrl": "",
"cachedResultName": ""
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"id": "",
"name": "Google Sheets account"
}
},
"typeVersion": 4.5
},
{
"id": "607a2e0f-f9f7-4056-8c83-45a3dfee211b",
"name": "Filter and Limit",
"type": "n8n-nodes-base.code",
"position": [
64,
512
],
"parameters": {
"jsCode": "const group = $('Determine Group').first().json.group;\nconst daily_limit = $('Determine Group').first().json.daily_limit;\n\nconst countryGroups = {\n 'Austria': 'EU_UK', 'Belgium': 'EU_UK', 'France': 'EU_UK',\n 'Germany': 'EU_UK', 'Italy': 'EU_UK', 'Netherlands': 'EU_UK',\n 'Norway': 'EU_UK', 'Spain': 'EU_UK', 'Sweden': 'EU_UK',\n 'Switzerland': 'EU_UK', 'United Kingdom': 'EU_UK',\n 'Canada': 'NA', 'United States': 'NA',\n 'Australia': 'AU'\n};\n\nconst filtered = items.filter(item => {\n const country = (item.json['Country'] || '').trim();\n const emailSent = (item.json['email_sent'] || '').toString().trim();\n const email = (item.json['Email'] || '').trim();\n return (\n countryGroups[country] === group &&\n emailSent === '' &&\n email.includes('@')\n );\n});\n\nreturn filtered.slice(0, daily_limit);"
},
"typeVersion": 2
},
{
"id": "2c74a24d-e217-4a71-a9aa-1a096e38c7ce",
"name": "Build Email",
"type": "n8n-nodes-base.set",
"position": [
288,
512
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "field-001",
"name": "to",
"type": "string",
"value": "={{ $json['Email'] }}"
},
{
"id": "field-002",
"name": "contact_email",
"type": "string",
"value": "={{ $json['Email'] }}"
},
{
"id": "field-003",
"name": "subject",
"type": "string",
"value": "=Quick question to {{ $('Read Contacts').item.json.Company }} Team"
},
{
"id": "field-004",
"name": "body",
"type": "string",
"value": "=<table role=\"presentation\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\" style=\"margin:0;padding:0;background:#ffffff;\">\n <tr>\n <td align=\"left\" style=\"padding:0;margin:0;\">\n <div style=\"font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.55;color:#111111;\">\n <p style=\"margin:0 0 14px 0;\">Hi {{ $json['First Name'] }},</p>\n\n <p style=\"margin:0 0 14px 0;\">\n [Write your opening line here. Mention something specific about the recipient or their company.]\n </p>\n\n <p style=\"margin:0 0 14px 0;\">\n [Explain the problem you help solve, in one short paragraph.]\n </p>\n\n <p style=\"margin:0 0 14px 0;\">\n <strong>[Your product or service name]</strong> helps [target persona] to [outcome], without [common pain point].\n </p>\n\n <p style=\"margin:0 0 18px 0;\">\n Happy to share more if relevant - feel free to reply with <strong>\"yes\"</strong> and I will send details.\n </p>\n\n <p style=\"margin:0;border-top:1px solid #dddddd;padding-top:12px;font-size:14px;color:#444444;\">\n Best regards,<br><br>\n <strong>[Your Name] - [Your Company]</strong><br>\n [Your title]<br>\n <a href=\"https://example.com\" target=\"_blank\" style=\"color:#0066cc;\">https://example.com</a>\n </p>\n </div>\n </td>\n </tr>\n</table>"
},
{
"id": "field-005",
"name": "group_sent",
"type": "string",
"value": "={{ $('Determine Group').first().json.group }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "de7b7941-e2c4-4d39-bd6c-0477ee0b08fb",
"name": "Send Gmail",
"type": "n8n-nodes-base.gmail",
"onError": "continueErrorOutput",
"position": [
512,
512
],
"webhookId": "7acbd5af-ceff-48ce-a8fb-f51496218d0e",
"parameters": {
"sendTo": "={{ $json.to }}",
"message": "={{ $json.body }}",
"options": {
"senderName": "",
"appendAttribution": false
},
"subject": "={{ $json.subject }}"
},
"credentials": {
"gmailOAuth2": {
"id": "",
"name": "Gmail account 2"
}
},
"typeVersion": 2.1
},
{
"id": "fb630893-1e98-4cbe-afdb-4e54daae2004",
"name": "Update Row Success",
"type": "n8n-nodes-base.googleSheets",
"position": [
960,
352
],
"parameters": {
"columns": {
"value": {
"status": "sent",
"error_msg": "",
"sent_date": "={{ $now.toFormat('yyyy-MM-dd HH:mm:ss') }}",
"email_sent": "yes",
"group_sent": "={{ $('Determine Group').item.json.group }}",
"row_number": "={{ $('Read Contacts').item.json.row_number }}"
},
"schema": [
{
"id": "row_number",
"type": "number",
"display": true,
"removed": false,
"readOnly": true,
"required": false,
"displayName": "row_number",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "email_sent",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "email_sent",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "sent_date",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "sent_date",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "status",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "status",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "group_sent",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "group_sent",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "error_msg",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "error_msg",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [
"row_number"
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {},
"operation": "update",
"sheetName": {
"__rl": true,
"mode": "list",
"value": "",
"cachedResultUrl": "",
"cachedResultName": ""
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "",
"cachedResultUrl": "",
"cachedResultName": ""
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"id": "",
"name": "Google Sheets account"
}
},
"typeVersion": 4.5
},
{
"id": "f1f12bdd-cfe1-4d81-a3c2-60dfcf41630d",
"name": "Update Row Error",
"type": "n8n-nodes-base.googleSheets",
"position": [
960,
672
],
"parameters": {
"columns": {
"value": {
"status": "failed",
"error_msg": "={{ $json.error?.message || $json.error || 'Unknown error' }}",
"sent_date": "={{ $now.toFormat('yyyy-MM-dd HH:mm:ss') }}",
"email_sent": "no",
"group_sent": "={{ $('Determine Group').item.json.group }}",
"row_number": "={{ $('Read Contacts').item.json.row_number }}"
},
"schema": [
{
"id": "row_number",
"type": "number",
"display": true,
"removed": false,
"readOnly": true,
"required": false,
"displayName": "row_number",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "email_sent",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "email_sent",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "sent_date",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "sent_date",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "status",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "status",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "group_sent",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "group_sent",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "error_msg",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "error_msg",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [
"row_number"
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {},
"operation": "update",
"sheetName": {
"__rl": true,
"mode": "list",
"value": "",
"cachedResultUrl": "",
"cachedResultName": ""
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "",
"cachedResultUrl": "",
"cachedResultName": ""
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"id": "",
"name": "Google Sheets account"
}
},
"typeVersion": 4.5
},
{
"id": "48d24d3e-064b-4ec5-a905-a90cdf5edf5e",
"name": "Trigger NA 18:00 UTC",
"type": "n8n-nodes-base.scheduleTrigger",
"position": [
-608,
512
],
"parameters": {
"rule": {
"interval": [
{
"field": "cronExpression",
"expression": "0 18 * * 1-5"
}
]
}
},
"typeVersion": 1.2
},
{
"id": "d4309fb4-993f-47fe-9d1b-06cade209599",
"name": "Trigger AU 1:00 UTC",
"type": "n8n-nodes-base.scheduleTrigger",
"position": [
-608,
704
],
"parameters": {
"rule": {
"interval": [
{
"field": "cronExpression",
"expression": "0 01 * * 1-5"
}
]
}
},
"typeVersion": 1.2
},
{
"id": "0bb21b83-de9a-485c-a4c9-6a779da3ab4a",
"name": "Sticky Note 0001",
"type": "n8n-nodes-base.stickyNote",
"position": [
-2576,
368
],
"parameters": {
"color": 7,
"width": 1600,
"height": 520,
"content": "## Timezone-aware email drip campaign (no wait nodes)\n\nSend outreach emails at the right working hour for each audience region, with a daily cap per region, status tracking in Google Sheets, and per-row error handling. No `Wait` nodes required - timing is driven entirely by three region-specific Cron schedules.\n\n### What it does\n- Three schedule triggers fire at the local working-hours window of each region (EU/UK, NA, AU)\n- A shared code node inspects the current UTC hour and picks the matching region + daily send limit\n- Reads your contact sheet, filters by country -> region mapping, skips rows already marked sent, and caps at the daily limit\n- Sends a personalised Gmail message\n- Writes `email_sent`, `sent_date`, `status`, `group_sent`, and `error_msg` back to the same row\n\n### Credentials required\n- **Google Sheets OAuth2** - reads contacts and writes status back\n- **Gmail OAuth2** - sends the outreach email\n\n### Setup (10-15 min)\n1. Create a Google Sheet with the columns listed in the \"Sheet schema\" sticky note\n2. In all three **Google Sheets** nodes, pick your sheet and the contacts tab\n3. Edit the **Build Email** node: replace the placeholder subject line and HTML body with your own copy\n4. In the **Send Gmail** node, set `senderName` to your name\n5. Optional: adjust the daily caps inside **Determine Group** (currently 45 / 90 / 15)\n6. Optional: edit the country -> region mapping inside **Filter and Limit** to match your contact list\n7. Activate the workflow\n"
},
"typeVersion": 1
},
{
"id": "252c415a-c310-417f-a7e0-c38b115781f3",
"name": "Sticky Note 0002",
"type": "n8n-nodes-base.stickyNote",
"position": [
-912,
208
],
"parameters": {
"color": 4,
"width": 200,
"height": 560,
"content": "## Step 1 - Three timezone-specific triggers\n\nThree independent `Schedule Trigger` nodes fire on weekdays (`Mon-Fri`):\n\n- **EU_UK** at 10:00 UTC (morning in Europe)\n- **NA** at 18:00 UTC (late morning on US East coast)\n- **AU** at 01:00 UTC (noon in eastern Australia)\n\nAll three feed into the same `Determine Group` node, so there is exactly ONE shared pipeline instead of three copies.\n\nEdit the cron expressions to match your preferred send windows."
},
"typeVersion": 1
},
{
"id": "0b27bf50-9c79-4eb0-bff8-c050874c9d32",
"name": "Sticky Note 0003",
"type": "n8n-nodes-base.stickyNote",
"position": [
-448,
16
],
"parameters": {
"color": 3,
"width": 200,
"height": 468,
"content": "## Step 2 - Determine region + daily cap\n\nReads the current UTC hour and returns:\n- `group`: one of `EU_UK`, `NA`, `AU`\n- `daily_limit`: max emails for that region today (default 45 / 90 / 15)\n\nRanges are non-overlapping so each trigger maps to exactly one region. Adjust the numbers here to change your send volume per region."
},
"typeVersion": 1
},
{
"id": "31ec967f-fd8a-4cb8-b9e4-6ad8086e08f8",
"name": "Sticky Note 0004",
"type": "n8n-nodes-base.stickyNote",
"position": [
-224,
160
],
"parameters": {
"color": 5,
"width": 200,
"height": 340,
"content": "## Step 3 - Read contacts from Google Sheets\n\nReads every row from your contacts tab. You must:\n1. Select your own spreadsheet in this node after import\n2. Pick the tab containing the contact list\n\nSee the \"Sheet schema\" sticky note for the exact columns expected."
},
"typeVersion": 1
},
{
"id": "e70bc4b8-84f0-4142-9d80-0f0a9d440b52",
"name": "Sticky Note 0005",
"type": "n8n-nodes-base.stickyNote",
"position": [
0,
-64
],
"parameters": {
"color": 6,
"width": 200,
"height": 568,
"content": "## Step 4 - Filter by region, skip already-sent, cap at daily limit\n\nFor the active `group`:\n- Matches each row's `Country` against the country -> region lookup in the code\n- Drops rows whose `email_sent` column is not empty\n- Drops rows without a valid `@` in the `Email` column\n- Slices the result down to the region's `daily_limit`\n\nAdd or remove countries in the `countryGroups` object inside this node to match your audience."
},
"typeVersion": 1
},
{
"id": "3b186678-144c-41d7-b769-7ee8c479453d",
"name": "Sticky Note 0006",
"type": "n8n-nodes-base.stickyNote",
"position": [
224,
-32
],
"parameters": {
"color": 4,
"width": 200,
"height": 524,
"content": "## Step 5 - Build personalised email\n\nA `Set` node assembles the outgoing email into these fields:\n- `to` - the recipient address\n- `subject` - subject line (supports expressions like `{{ $json['Company'] }}`)\n- `body` - HTML body (supports `{{ $json['First Name'] }}` and any other column)\n- `group_sent` - recorded later in the sheet for audit\n\nReplace the placeholder subject and HTML body with your own copy."
},
"typeVersion": 1
},
{
"id": "f8fa6bd7-e6fb-4108-a542-771b9b40f011",
"name": "Sticky Note 0007",
"type": "n8n-nodes-base.stickyNote",
"position": [
464,
128
],
"parameters": {
"color": 5,
"width": 200,
"height": 360,
"content": "## Step 6 - Send via Gmail\n\nSends through your connected Gmail account. Set `senderName` in the node options to your display name.\n\n`onError: continueRegularOutput` means a failed send does NOT stop the batch - the error object flows downstream so the failed row can be logged separately."
},
"typeVersion": 1
},
{
"id": "be031510-a25c-4085-9f4e-2b7b7d1b338f",
"name": "Sticky Note 0008",
"type": "n8n-nodes-base.stickyNote",
"position": [
848,
-16
],
"parameters": {
"color": 3,
"width": 300,
"height": 300,
"content": "## Step 7 - Success / error branching\n\nThe `IF` node checks whether the Gmail response contains an `error` object:\n- **true (error exists)** -> `Update Row Error` writes `status = failed` + the error message\n- **false (no error)** -> `Update Row Success` writes `status = sent`\n\nBoth branches match on the `Email` column so the right row is updated."
},
"typeVersion": 1
},
{
"id": "5a937088-6dd9-4406-a7a2-8d6540e33749",
"name": "Sticky Note 0009",
"type": "n8n-nodes-base.stickyNote",
"position": [
1216,
336
],
"parameters": {
"color": 6,
"width": 340,
"height": 556,
"content": "## Sheet schema\n\nCreate a tab (e.g. `Contacts`) with these columns in the first row:\n\n- `First Name`\n- `Company` *(used in the subject placeholder; optional if you rewrite the subject)*\n- `Email`\n- `Country` *(must match a key in the country -> region map)*\n- `email_sent` *(leave blank; filled by the workflow)*\n- `sent_date` *(leave blank)*\n- `status` *(leave blank)*\n- `group_sent` *(leave blank)*\n- `error_msg` *(leave blank)*\n\n### Supported countries out of the box\nEU_UK: Austria, Belgium, France, Germany, Italy, Netherlands, Norway, Spain, Sweden, Switzerland, United Kingdom\nNA: Canada, United States\nAU: Australia\n\nAdd more inside the `Filter and Limit` node."
},
"typeVersion": 1
},
{
"parameters": {
"operation": "verify",
"email": "={{ $json.to }}",
"additionalOptions": {}
},
"type": "n8n-nodes-billionverify.billionVerify",
"typeVersion": 1,
"position": [
152,
512
],
"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": [
332,
512
],
"name": "IF deliverable"
}
],
"connections": {
"Send Gmail": {
"main": [
[
{
"node": "Update Row Success",
"type": "main",
"index": 0
}
],
[
{
"node": "Update Row Error",
"type": "main",
"index": 0
}
]
]
},
"Build Email": {
"main": [
[
{
"node": "Verify Email (BillionVerify)",
"type": "main",
"index": 0
}
]
]
},
"Read Contacts": {
"main": [
[
{
"node": "Filter and Limit",
"type": "main",
"index": 0
}
]
]
},
"Determine Group": {
"main": [
[
{
"node": "Read Contacts",
"type": "main",
"index": 0
}
]
]
},
"Filter and Limit": {
"main": [
[
{
"node": "Build Email",
"type": "main",
"index": 0
}
]
]
},
"Trigger AU 1:00 UTC": {
"main": [
[
{
"node": "Determine Group",
"type": "main",
"index": 0
}
]
]
},
"Trigger NA 18:00 UTC": {
"main": [
[
{
"node": "Determine Group",
"type": "main",
"index": 0
}
]
]
},
"Trigger EU_UK 10:00 UTC": {
"main": [
[
{
"node": "Determine Group",
"type": "main",
"index": 0
}
]
]
},
"Verify Email (BillionVerify)": {
"main": [
[
{
"node": "IF deliverable",
"type": "main",
"index": 0
}
]
]
},
"IF deliverable": {
"main": [
[
{
"node": "Send Gmail",
"type": "main",
"index": 0
}
],
[]
]
}
},
"settings": {
"binaryMode": "separate",
"executionOrder": "v1"
}
}Workflow templates with Drip
Ready-to-use workflows that verify emails before Drip sends.
How it works
- 1
Connect BillionVerify to Drip via the n8n community node, Integrately's 1-click integration, or the REST API.
- 2
Trigger verification whenever a new subscriber is added to a Drip list or workflow.
- 3
BillionVerify evaluates the address for deliverability, disposable-provider flags, role-address patterns, and catch-all domain risk.
- 4
Automatically tag or exclude addresses that fail verification before they enter your active Drip sequences.
- 5
Send campaigns to a clean, verified list and watch deliverability metrics improve.
When to use this
Verify subscribers at the moment of opt-in
Route every new email sign-up through BillionVerify before adding the contact to Drip. This blocks disposable addresses and typos from entering your list, so your open rates and deliverability reflect genuine customer interest.
Scrub existing Drip lists before major campaigns
Before launching a large promotional campaign, export your Drip list and validate it with BillionVerify. Remove invalid and risky addresses to reduce bounce risk and avoid jeopardizing your sending reputation.
Filter checkout email captures
When a shopper provides an email at checkout and is added to Drip, verify the address first. Catching invalid emails at this stage ensures post-purchase sequences, shipping notifications, and review requests all reach the customer.
FAQ
Will BillionVerify work with Drip's existing automation workflows?
Yes. Through n8n or Integrately, you can insert a BillionVerify check into any Drip automation trigger, such as a new subscriber event, without rebuilding your existing flows.
How does email verification affect e-commerce conversion tracking?
Verified addresses mean more emails are delivered, opened, and clicked — giving you cleaner attribution data. Fewer bounces also mean your conversion metrics reflect real customer behavior rather than delivery failures.
Can I verify addresses in bulk for a list I want to import into Drip?
Yes. BillionVerify's bulk verification API lets you validate an entire CSV export before importing it into Drip, ensuring your starting list is free of invalid and high-risk addresses.
What is a disposable email address and why should I block it?
Disposable addresses are temporary mailboxes created to receive a one-time message and then discarded. They skew engagement metrics, can never be re-engaged, and add no long-term value to an e-commerce email program.
Verify emails in Drip
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