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Deepl email verification with BillionVerify
DeepL is a leading AI translation service used by teams to localize content, communications, and documents across languages. If your DeepL-powered workflows also handle multilingual email campaigns or contact collection, BillionVerify ensures the addresses you collect are valid and deliverable before any message is sent.
Why verify before the send
Translation workflows often feed into multilingual email outreach, where a high bounce rate can damage sender reputation across multiple sending domains simultaneously. Verifying emails before they enter your lists — filtering disposable, invalid, and catch-all addresses — protects deliverability for every language and market you reach.
Ready-to-use n8n workflow
Import this workflow into n8n — it verifies every address with BillionVerify before Deepl 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-deepl.json
{
"name": "Translate documents to multiple languages with Google Drive and DeepL + BillionVerify",
"nodes": [
{
"id": "83cdf376-b378-4a69-926d-29790f0c5053",
"name": "Google Drive Trigger",
"type": "n8n-nodes-base.googleDriveTrigger",
"position": [
384,
240
],
"parameters": {
"event": "fileCreated",
"options": {},
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
},
"triggerOn": "specificFolder",
"folderToWatch": {
"__rl": true,
"mode": "id",
"value": "YOUR_SOURCE_FOLDER_ID_HERE"
}
},
"typeVersion": 1
},
{
"id": "5a1fd22d-b09a-4bfc-8260-557ea3ccf7c1",
"name": "Configuration (Edit Here)",
"type": "n8n-nodes-base.set",
"notes": "翻訳先言語、フォルダID、通知先メールアドレスをここで設定",
"position": [
608,
320
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "source_folder_id",
"name": "sourceFolderId",
"type": "string",
"value": "YOUR_SOURCE_FOLDER_ID_HERE"
},
{
"id": "destination_folder_id",
"name": "destinationFolderId",
"type": "string",
"value": "YOUR_DESTINATION_FOLDER_ID_HERE"
},
{
"id": "target_languages",
"name": "targetLanguages",
"type": "array",
"value": "=[\"EN\", \"ZH\", \"KO\", \"ES\", \"FR\", \"DE\"]"
},
{
"id": "notification_email",
"name": "notificationEmail",
"type": "string",
"value": "user@example.com"
},
{
"id": "enable_notion",
"name": "enableNotion",
"type": "boolean",
"value": "=false"
},
{
"id": "notion_database_id",
"name": "notionDatabaseId",
"type": "string",
"value": "YOUR_NOTION_DATABASE_ID_HERE"
}
]
}
},
"typeVersion": 3.3
},
{
"id": "ae46edbf-2890-46e1-b771-96e3b869b95e",
"name": "Detect File Format",
"type": "n8n-nodes-base.switch",
"position": [
1040,
224
],
"parameters": {
"rules": {
"values": [
{
"outputKey": "PDF",
"conditions": {
"options": {
"version": 1,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "pdf_check",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.mimeType }}",
"rightValue": "application/pdf"
}
]
},
"renameOutput": true
},
{
"outputKey": "DOCX",
"conditions": {
"options": {
"version": 1,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "or",
"conditions": [
{
"id": "docx_check",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.mimeType }}",
"rightValue": "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
},
{
"id": "gdoc_check",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.mimeType }}",
"rightValue": "application/vnd.google-apps.document"
}
]
},
"renameOutput": true
},
{
"outputKey": "TXT",
"conditions": {
"options": {
"version": 1,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "txt_check",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.mimeType }}",
"rightValue": "text/plain"
}
]
},
"renameOutput": true
},
{
"outputKey": "Markdown",
"conditions": {
"options": {
"version": 1,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "or",
"conditions": [
{
"id": "md_check",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.mimeType }}",
"rightValue": "text/markdown"
},
{
"id": "md_ext_check",
"operator": {
"type": "string",
"operation": "endsWith"
},
"leftValue": "={{ $json.name }}",
"rightValue": ".md"
}
]
},
"renameOutput": true
}
]
},
"options": {}
},
"typeVersion": 3
},
{
"id": "2c694bdd-9d2c-4812-998f-ec9f02840a03",
"name": "Download PDF",
"type": "n8n-nodes-base.googleDrive",
"position": [
1280,
96
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {
"googleFileConversion": {
"conversion": {}
}
},
"operation": "download"
},
"typeVersion": 3
},
{
"id": "bc2dbb61-1fa5-47f9-a31c-64271a3c2566",
"name": "Download DOCX",
"type": "n8n-nodes-base.googleDrive",
"position": [
1280,
240
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {
"googleFileConversion": {
"conversion": {}
}
},
"operation": "download"
},
"typeVersion": 3
},
{
"id": "4a72a576-533f-4ebb-bacf-1bb320e3fb37",
"name": "Download TXT",
"type": "n8n-nodes-base.googleDrive",
"position": [
1280,
384
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {},
"operation": "download"
},
"typeVersion": 3
},
{
"id": "9aee4e13-7167-4ec3-a58e-2cb4335304a1",
"name": "Download Markdown",
"type": "n8n-nodes-base.googleDrive",
"position": [
1280,
544
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {},
"operation": "download"
},
"typeVersion": 3
},
{
"id": "acce4e6b-5e61-47e2-bce0-9ab7e3ada23e",
"name": "Extract Text from PDF",
"type": "n8n-nodes-base.extractFromFile",
"position": [
1504,
96
],
"parameters": {
"options": {},
"operation": "pdf"
},
"typeVersion": 1
},
{
"id": "b53b7314-5093-48ef-abf8-5dcf95671b03",
"name": "Extract Text from DOCX",
"type": "n8n-nodes-base.extractFromFile",
"position": [
1504,
240
],
"parameters": {
"options": {},
"operation": "text",
"destinationKey": "text"
},
"typeVersion": 1
},
{
"id": "a5a5fb92-b2d0-4e54-90d8-ea3b8774e9ea",
"name": "Format Text Data",
"type": "n8n-nodes-base.set",
"position": [
1728,
240
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "extracted_text",
"name": "extractedText",
"type": "string",
"value": "YOUR_FOLDER_ID_HERE"
},
{
"id": "original_filename",
"name": "originalFilename",
"type": "string",
"value": "YOUR_FOLDER_ID_HERE"
},
{
"id": "file_extension",
"name": "fileExtension",
"type": "string",
"value": "YOUR_FOLDER_ID_HERE"
},
{
"id": "da59a266-c54d-4465-8861-e0a9a0653c58",
"name": "targetLanguages",
"type": "array",
"value": "YOUR_FOLDER_ID_HERE"
},
{
"id": "a89d12ba-2143-483a-95b2-3478e4b9aa98",
"name": "destinationFolderId",
"type": "string",
"value": "YOUR_FOLDER_ID_HERE"
},
{
"id": "d3252026-1b16-4ebd-a3d0-8c69bc4c8cbb",
"name": "notificationEmail",
"type": "string",
"value": "YOUR_FOLDER_ID_HERE"
},
{
"id": "e75b9594-07de-456d-84ca-305b051a0574",
"name": "enableNotion",
"type": "boolean",
"value": "YOUR_FOLDER_ID_HERE"
},
{
"id": "a79fefa4-8682-4919-b3ed-b2d4c07fdf4c",
"name": "notionDatabaseId",
"type": "string",
"value": "YOUR_FOLDER_ID_HERE"
}
]
},
"includeOtherFields": true
},
"typeVersion": 3.3
},
{
"id": "558fedb8-9449-45cc-a33c-d55801b585e2",
"name": "Split by Language",
"type": "n8n-nodes-base.splitOut",
"position": [
1936,
240
],
"parameters": {
"options": {},
"fieldToSplitOut": "=targetLanguages"
},
"typeVersion": 1,
"alwaysOutputData": false
},
{
"id": "dae4d4f7-9246-4797-bb73-52aea5aef0aa",
"name": "Generate Filename",
"type": "n8n-nodes-base.set",
"position": [
2384,
224
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "translated_text",
"name": "translatedText",
"type": "string",
"value": "={{ $json.text }}"
},
{
"id": "language_code",
"name": "languageCode",
"type": "string",
"value": "YOUR_FOLDER_ID_HERE"
},
{
"id": "new_filename",
"name": "newFilename",
"type": "string",
"value": "YOUR_FOLDER_ID_HERE"
}
]
}
},
"typeVersion": 3.3
},
{
"id": "2b2331bc-4f3f-4cee-9fa0-0a5c33ace38f",
"name": "Create Translated File",
"type": "n8n-nodes-base.writeBinaryFile",
"position": [
2816,
224
],
"parameters": {
"options": {},
"fileName": "={{ $json.newFilename }}",
"dataPropertyName": "=data"
},
"typeVersion": 1
},
{
"id": "4d893749-ce0a-404c-ad21-aef61c3183dd",
"name": "Save to Google Drive",
"type": "n8n-nodes-base.googleDrive",
"position": [
3040,
224
],
"parameters": {
"name": "={{ $json.newFilename }}",
"driveId": {
"__rl": true,
"mode": "list",
"value": "YOUR_FOLDER_ID_HERE"
},
"options": {},
"folderId": {
"__rl": true,
"mode": "list",
"value": "YOUR_FOLDER_ID_HERE",
"cachedResultName": "翻訳済み"
}
},
"typeVersion": 3
},
{
"id": "de276bf8-db41-4ee9-89a8-12a7a986fdd4",
"name": "Check if Notion Enabled",
"type": "n8n-nodes-base.if",
"position": [
3264,
224
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 1,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "notion_enabled",
"operator": {
"type": "boolean",
"operation": "true",
"singleValue": true
},
"leftValue": "={{ $json.enableNotion }}",
"rightValue": true
}
]
}
},
"typeVersion": 2
},
{
"id": "c1498c5a-fd1a-4d61-a5e5-5433cc88dabc",
"name": "Record in Notion",
"type": "n8n-nodes-base.notion",
"position": [
3488,
96
],
"parameters": {
"title": "={{ $json.originalFilename }}",
"options": {},
"resource": "databasePage",
"databaseId": {
"__rl": true,
"mode": "id",
"value": "YOUR_FOLDER_ID_HERE"
},
"propertiesUi": {
"propertyValues": [
{
"key": "=={{ $json.originalFilename }}"
},
{
"key": "=={{ $json.languageCode }}"
},
{
"key": "=={{ $now.toISO() }}"
},
{
"key": "=={{ $json.webViewLink }}"
}
]
}
},
"typeVersion": 2.2
},
{
"id": "ae061349-3976-44bb-81f8-a7ae53b283f9",
"name": "Merge Results",
"type": "n8n-nodes-base.merge",
"position": [
3744,
224
],
"parameters": {
"mode": "combine",
"options": {},
"combinationMode": "mergeByPosition"
},
"typeVersion": 2.1
},
{
"id": "bce4bc57-8a20-4b53-b470-c8fe0df34d33",
"name": "Aggregate Translations",
"type": "n8n-nodes-base.aggregate",
"position": [
3936,
224
],
"parameters": {
"options": {},
"aggregate": "aggregateAllItemData"
},
"typeVersion": 1
},
{
"id": "a4898c8f-8fdc-4374-b8e4-eb0e1870bdb1",
"name": "Prepare Notification",
"type": "n8n-nodes-base.set",
"position": [
4128,
224
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "summary",
"name": "summary",
"type": "object",
"value": {
"timestamp": "={{ $now.toISO() }}",
"originalFile": "={{ $('テキスト整形').item.json.originalFilename }}",
"totalTranslations": "={{ $('設定（ここを編集）').item.json.targetLanguages.length }}",
"translatedLanguages": "={{ $('設定（ここを編集）').item.json.targetLanguages }}"
}
}
]
}
},
"typeVersion": 3.3
},
{
"id": "afb71078-f6ce-487d-b096-11bafbbfa533",
"name": "Send Gmail Notification",
"type": "n8n-nodes-base.gmail",
"position": [
4320,
224
],
"webhookId": "42da0974-1b42-48b9-be7c-eef321c1a0b4",
"parameters": {
"sendTo": "=変更後: {{ $('設定（ここを編集）').item.json.notificationEmail }}",
"message": "=<h2>🎉 翻訳が完了しました！</h2>\n\n<p><strong>元ファイル:</strong> {{ $('通知内容準備').item.json.summary.originalFile }}</p>\n<p><strong>翻訳した言語:</strong> {{ $('通知内容準備').item.json.summary.translatedLanguages.join(', ') }}</p>\n<p><strong>合計翻訳数:</strong> {{ $('通知内容準備').item.json.summary.totalTranslations }}件</p>\n<p><strong>翻訳日時:</strong> {{ $('通知内容準備').item.json.summary.timestamp }}</p>\n\n<p>翻訳済みファイルはGoogle Driveの指定フォルダに保存されています。</p>",
"options": {},
"subject": "翻訳完了: {{ $json.summary.originalFile }}"
},
"typeVersion": 2.1
},
{
"id": "982fd89f-4ad5-4f95-b8fd-4e3bb3834067",
"name": "Error Handler",
"type": "n8n-nodes-base.code",
"disabled": true,
"position": [
2384,
384
],
"parameters": {
"jsCode": "// エラーハンドリングとログ記録\nconst errorInfo = {\n timestamp: new Date().toISOString(),\n error: $input.item.json.error || 'Unknown error',\n fileName: $('Google Drive Trigger').item.json.name,\n step: $node.name\n};\n\nconsole.error('Translation workflow error:', errorInfo);\n\nreturn { json: errorInfo };"
},
"typeVersion": 2
},
{
"id": "347d3afa-5afc-47be-a5f1-d2e157016368",
"name": "Send Error Notification",
"type": "n8n-nodes-base.gmail",
"disabled": true,
"position": [
2608,
384
],
"webhookId": "7f553df2-d150-42df-b406-58e914f97ea2",
"parameters": {
"sendTo": "={{ $('設定（ここを編集）').item.json.notificationEmail }}",
"message": "翻訳処理中にエラーが発生しました。\n\nファイル: {{ $json.fileName }}\nエラー内容: {{ $json.error }}\n発生時刻: {{ $json.timestamp }}",
"options": {},
"subject": "❌ 翻訳エラー発生",
"emailType": "text"
},
"typeVersion": 2.1
},
{
"id": "c90b4bcf-596d-46e5-b699-8c674240d07b",
"name": "Translate a language",
"type": "n8n-nodes-base.deepL",
"position": [
2160,
240
],
"parameters": {
"text": "={{ $('テキスト整形').item.json.extractedText }}",
"translateTo": "={{ $json.targetLanguages }}",
"additionalFields": {}
},
"typeVersion": 1
},
{
"id": "71df147c-e32b-482d-b566-d571b278fb2f",
"name": "Merge Configuration",
"type": "n8n-nodes-base.merge",
"position": [
816,
256
],
"parameters": {
"mode": "combine",
"options": {},
"combinationMode": "mergeByPosition"
},
"typeVersion": 2.1
},
{
"id": "d5caf454-8f37-4f92-a475-7f5739c9c138",
"name": "Read Markdown File",
"type": "n8n-nodes-base.extractFromFile",
"position": [
1504,
576
],
"parameters": {
"options": {},
"operation": "text",
"destinationKey": "text"
},
"typeVersion": 1
},
{
"id": "d5c8bef8-7b69-4e79-beae-a7e5184e1069",
"name": "Read TXT File",
"type": "n8n-nodes-base.extractFromFile",
"position": [
1504,
416
],
"parameters": {
"options": {},
"operation": "text",
"destinationKey": "text"
},
"typeVersion": 1
},
{
"id": "6b2e9567-aabb-4935-b712-ed697da1ec2b",
"name": "Code in JavaScript",
"type": "n8n-nodes-base.code",
"position": [
2592,
224
],
"parameters": {
"mode": "runOnceForEachItem",
"jsCode": "// テキストをバイナリに変換\nconst text = $input.item.json.translatedText;\nconst fileName = $input.item.json.newFilename;\nconst buffer = Buffer.from(text, 'utf-8');\n\n// JSONデータとバイナリデータの両方を返す\nreturn {\n json: {\n ...$input.item.json, // すべてのJSONフィールドを引き継ぐ\n newFilename: fileName,\n translatedText: text\n },\n binary: {\n data: {\n data: buffer,\n mimeType: 'text/plain',\n fileName: fileName\n }\n }\n};"
},
"typeVersion": 2
},
{
"id": "8a5557f5-95cf-424d-9e1f-39ce96de98a7",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"notes": "# 🌍 Multi-Language Document Translation Workflow\n\n## What this workflow does:\nAutomatically translates documents uploaded to Google Drive into multiple languages using DeepL API.\n\n## Supported file types:\n✅ PDF\n✅ DOCX (Microsoft Word)\n✅ Google Docs\n✅ TXT\n✅ Markdown (.md)\n\n## How to set up:\n1. **Edit the \"Configuration (Edit Here)\" node** (yellow node below)\n - Set your Google Drive folder IDs\n - Choose target languages\n - Set your notification email\n\n2. **Add credentials** for:\n - Google Drive OAuth2\n - DeepL API\n - Gmail OAuth2\n - Notion API (optional)\n\n3. **Activate the workflow** and upload a file!\n\n## Default target languages:\nEN, ZH, KO, ES, FR, DE (can be customized)\n\n## Output:\nTranslated files saved with language codes:\n- document_en.pdf\n- document_zh.pdf\n- document_ko.pdf\netc.\n\n## Note:\nDeepL free tier: 500,000 characters/month",
"position": [
-256,
-272
],
"parameters": {
"width": 560,
"height": 1064,
"content": "# 🌍 Multi-Language Document Translation Workflow\n\n## What this workflow does:\nAutomatically translates documents uploaded to Google Drive into multiple languages using DeepL API.\n\n## Supported file types:\n✅ PDF\n✅ DOCX (Microsoft Word)\n✅ Google Docs\n✅ TXT\n✅ Markdown (.md)\n\n## How to set up:\n1. **Edit the \"Configuration (Edit Here)\" node** (yellow node below)\n - Set your Google Drive folder IDs\n - Choose target languages\n - Set your notification email\n\n2. **Add credentials** for:\n - Google Drive OAuth2\n - DeepL API\n - Gmail OAuth2\n - Notion API (optional)\n\n3. **Activate the workflow** and upload a file!\n\n## Default target languages:\nEN, ZH, KO, ES, FR, DE (can be customized)\n\n## Output:\nTranslated files saved with language codes:\n- document_en.pdf\n- document_zh.pdf\n- document_ko.pdf\netc.\n\n## Note:\nDeepL free tier: 500,000 characters/month"
},
"typeVersion": 1
},
{
"id": "348dcb93-7d41-4749-b6c2-ef5a58e024d8",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"notes": "## 1️⃣ Configuration\n\n**EDIT THIS NODE** to customize:\n- Source folder ID (where to monitor)\n- Destination folder ID (where to save)\n- Target languages (default: 6 languages)\n- Notification email\n- Notion integration (optional)\n\nAll settings are in one place for easy setup!",
"position": [
896,
-64
],
"parameters": {
"color": 7,
"width": 380,
"height": 256,
"content": "## 2️⃣ File Format Detection & Text Extraction\n\nDetects file type (PDF/DOCX/TXT/MD) and routes to appropriate extraction method.\n\nEach format requires different extraction logic:\n- PDF: OCR-enabled text extraction\n- DOCX: Structure-aware parsing\n- TXT/MD: Direct text reading"
},
"typeVersion": 1
},
{
"id": "0a1a8c7c-2e8f-49df-95e7-6e1be44e45a4",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"notes": "## 2️⃣ File Format Detection & Text Extraction\n\nDetects file type (PDF/DOCX/TXT/MD) and routes to appropriate extraction method.\n\nEach format requires different extraction logic:\n- PDF: OCR-enabled text extraction\n- DOCX: Structure-aware parsing\n- TXT/MD: Direct text reading",
"position": [
480,
480
],
"parameters": {
"color": 7,
"width": 328,
"height": 200,
"content": "## 1️⃣ Configuration\n\n**EDIT THIS NODE** to customize:\n- Source folder ID (where to monitor)\n- Destination folder ID (where to save)\n- Target languages (default: 6 languages)\n- Notification email\n- Notion integration (optional)\n\nAll settings are in one place for easy setup!"
},
"typeVersion": 1
},
{
"id": "a6351ae3-f679-4135-b53c-06f631abe384",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"notes": "## 3️⃣ Translation Loop\n\nSplits into one item per language, then FOR EACH:\n1. Translates text with DeepL API\n2. Generates filename with language code\n3. Creates binary file\n4. Uploads to Google Drive\n\nThis loop runs for all target languages in parallel.",
"position": [
1776,
-32
],
"parameters": {
"color": 7,
"width": 440,
"height": 232,
"content": "## 3️⃣ Translation Loop\n\nSplits into one item per language, then FOR EACH:\n1. Translates text with DeepL API\n2. Generates filename with language code\n3. Creates binary file\n4. Uploads to Google Drive\n\nThis loop runs for all target languages in parallel."
},
"typeVersion": 1
},
{
"id": "f2fd7b4b-e246-4cef-b3d9-bad0832e4a30",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"notes": "## 4️⃣ Completion & Notification\n\nAfter all translations complete:\n1. Aggregates all results\n2. Prepares summary data\n3. Sends email notification\n\nOptional: Records translation history in Notion database for tracking.",
"position": [
3856,
-32
],
"parameters": {
"color": 7,
"width": 380,
"height": 216,
"content": "## 4️⃣ Completion & Notification\n\nAfter all translations complete:\n1. Aggregates all results\n2. Prepares summary data\n3. Sends email notification\n\nOptional: Records translation history in Notion database for tracking."
},
"typeVersion": 1
},
{
"parameters": {
"operation": "verify",
"email": "=変更後: {{ $('設定（ここを編集）').item.json.notificationEmail }}",
"additionalOptions": {}
},
"type": "n8n-nodes-billionverify.billionVerify",
"typeVersion": 1,
"position": [
3960,
224
],
"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": [
4140,
224
],
"name": "IF deliverable"
},
{
"parameters": {
"operation": "verify",
"email": "={{ $('設定（ここを編集）').item.json.notificationEmail }}",
"additionalOptions": {}
},
"type": "n8n-nodes-billionverify.billionVerify",
"typeVersion": 1,
"position": [
2248,
384
],
"name": "Verify Email (BillionVerify) 2",
"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": [
2428,
384
],
"name": "IF deliverable 2"
}
],
"connections": {
"Download PDF": {
"main": [
[
{
"node": "Extract Text from PDF",
"type": "main",
"index": 0
}
]
]
},
"Download TXT": {
"main": [
[
{
"node": "Read TXT File",
"type": "main",
"index": 0
}
]
]
},
"Download DOCX": {
"main": [
[
{
"node": "Extract Text from DOCX",
"type": "main",
"index": 0
}
]
]
},
"Error Handler": {
"main": [
[
{
"node": "Verify Email (BillionVerify) 2",
"type": "main",
"index": 0
}
]
]
},
"Merge Results": {
"main": [
[
{
"node": "Aggregate Translations",
"type": "main",
"index": 0
}
]
]
},
"Read TXT File": {
"main": [
[
{
"node": "Format Text Data",
"type": "main",
"index": 0
}
]
]
},
"Format Text Data": {
"main": [
[
{
"node": "Split by Language",
"type": "main",
"index": 0
}
]
]
},
"Record in Notion": {
"main": [
[
{
"node": "Merge Results",
"type": "main",
"index": 0
}
]
]
},
"Download Markdown": {
"main": [
[
{
"node": "Read Markdown File",
"type": "main",
"index": 0
}
]
]
},
"Generate Filename": {
"main": [
[
{
"node": "Code in JavaScript",
"type": "main",
"index": 0
}
]
]
},
"Split by Language": {
"main": [
[
{
"node": "Translate a language",
"type": "main",
"index": 0
}
]
]
},
"Code in JavaScript": {
"main": [
[
{
"node": "Create Translated File",
"type": "main",
"index": 0
}
]
]
},
"Detect File Format": {
"main": [
[
{
"node": "Download PDF",
"type": "main",
"index": 0
}
],
[
{
"node": "Download DOCX",
"type": "main",
"index": 0
}
],
[
{
"node": "Download TXT",
"type": "main",
"index": 0
}
],
[
{
"node": "Download Markdown",
"type": "main",
"index": 0
}
]
]
},
"Read Markdown File": {
"main": [
[
{
"node": "Format Text Data",
"type": "main",
"index": 0
}
]
]
},
"Merge Configuration": {
"main": [
[
{
"node": "Detect File Format",
"type": "main",
"index": 0
}
]
]
},
"Google Drive Trigger": {
"main": [
[
{
"node": "Merge Configuration",
"type": "main",
"index": 0
},
{
"node": "Configuration (Edit Here)",
"type": "main",
"index": 0
}
]
]
},
"Prepare Notification": {
"main": [
[
{
"node": "Verify Email (BillionVerify)",
"type": "main",
"index": 0
}
]
]
},
"Save to Google Drive": {
"main": [
[
{
"node": "Check if Notion Enabled",
"type": "main",
"index": 0
}
]
]
},
"Translate a language": {
"main": [
[
{
"node": "Generate Filename",
"type": "main",
"index": 0
}
]
]
},
"Extract Text from PDF": {
"main": [
[
{
"node": "Format Text Data",
"type": "main",
"index": 0
}
]
]
},
"Aggregate Translations": {
"main": [
[
{
"node": "Prepare Notification",
"type": "main",
"index": 0
}
]
]
},
"Create Translated File": {
"main": [
[
{
"node": "Save to Google Drive",
"type": "main",
"index": 0
}
]
]
},
"Extract Text from DOCX": {
"main": [
[
{
"node": "Format Text Data",
"type": "main",
"index": 0
}
]
]
},
"Check if Notion Enabled": {
"main": [
[
{
"node": "Record in Notion",
"type": "main",
"index": 0
}
],
[
{
"node": "Merge Results",
"type": "main",
"index": 1
}
]
]
},
"Configuration (Edit Here)": {
"main": [
[
{
"node": "Merge Configuration",
"type": "main",
"index": 1
}
]
]
},
"Verify Email (BillionVerify)": {
"main": [
[
{
"node": "IF deliverable",
"type": "main",
"index": 0
}
]
]
},
"IF deliverable": {
"main": [
[
{
"node": "Send Gmail Notification",
"type": "main",
"index": 0
}
],
[]
]
},
"Verify Email (BillionVerify) 2": {
"main": [
[
{
"node": "IF deliverable 2",
"type": "main",
"index": 0
}
]
]
},
"IF deliverable 2": {
"main": [
[
{
"node": "Send Error Notification",
"type": "main",
"index": 0
}
],
[]
]
}
},
"settings": {
"executionOrder": "v1"
}
}Workflow templates with Deepl
Ready-to-use workflows that verify emails before Deepl sends.
How it works
- 1
Connect BillionVerify via the n8n community node, Integrately 1-click integration, or the REST API alongside your DeepL workflow.
- 2
When an email address is collected — from a translated form, a content download, or a partner feed — pass it to BillionVerify for verification.
- 3
BillionVerify checks deliverability, flags disposable and role-based addresses, and evaluates catch-all domains.
- 4
Only addresses that pass verification continue into your contact list or trigger downstream email actions.
- 5
Your multilingual campaigns send to clean, verified lists, protecting sender reputation across all markets.
When to use this
Validate Contacts from Localized Sign-Up Forms
When users register through translated landing pages in different regions, their email addresses vary in quality. Run each address through BillionVerify before adding it to your list to prevent region-specific bounce spikes from harming your sender reputation.
Protect Multilingual Email Campaigns
Before triggering a translated email campaign through your automation stack, verify the recipient list. BillionVerify removes undeliverable and disposable addresses so your localized messages land in real inboxes.
FAQ
Can I use BillionVerify inside an n8n workflow that also calls DeepL?
Absolutely. Both BillionVerify and DeepL can be nodes in the same n8n workflow. Add the BillionVerify node before any step that sends email or stores contacts.
Why is email verification especially important for multilingual campaigns?
Campaigns targeting multiple regions often pull contacts from diverse sources with inconsistent data quality. A high bounce rate in any one region can trigger spam filters globally, making upfront verification essential.
Does BillionVerify support bulk list verification?
Yes. You can verify addresses one at a time via the API or upload entire lists for bulk processing, making it easy to clean existing contact databases before a campaign launch.
What happens to disposable email addresses?
BillionVerify identifies addresses from known disposable or temporary email providers and returns a clear flag, allowing your workflow to reject or quarantine them automatically.
Verify emails in Deepl
Create a free account, grab your API key, and stop bounces before they happen.
Get started free