← All Newsletter & ESP Workflows
BillionVerifyMailgun
Complete B2B sales pipeline: Apollo lead gen, Mailgun outreach & AI reply management
Pull contacts, verify each address with BillionVerify, and continue to Mailgun — only deliverable addresses get through.
Why verify before the send
Sending to invalid, risky, catch-all, or disposable addresses spikes your bounce rate and erodes sender reputation. A verification gate before the Mailgun step removes that risk automatically — only deliverable addresses continue, the rest are flagged.
The workflow
BillionVerify — verification sits right before the send.
Node by node
- 1Schedule Trigger1Trigger· n8n
Starts the workflow — on a schedule, a webhook, or manually while you test.
- 2OpenAI Chat ModelSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 3Structured Output ParserSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 4Schedule Trigger3Trigger· n8n
Starts the workflow — on a schedule, a webhook, or manually while you test.
- 5Schedule Trigger4Trigger· n8n
Starts the workflow — on a schedule, a webhook, or manually while you test.
- 6Schedule Trigger6Trigger· n8n
Starts the workflow — on a schedule, a webhook, or manually while you test.
- 7OpenAI Chat Model1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 8Simple MemorySource· n8n
Provides or transforms the contact data flowing through the workflow.
- 9User messageTrigger· n8n
Starts the workflow — on a schedule, a webhook, or manually while you test.
- 10Structured Output Parser1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 11Gmail TriggerTrigger· n8n
Starts the workflow — on a schedule, a webhook, or manually while you test.
- 12Get Email HistorySource· n8n
Provides or transforms the contact data flowing through the workflow.
- 13Check Sent HistorySource· n8n
Provides or transforms the contact data flowing through the workflow.
- 14Email Response ParserSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 15Anthropic Chat Model1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 16Supabase2Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 17Get many rowsSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 18Supabase11Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 19Supabase13Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 20Voice or Text1Logic· n8n
Routes items based on the workflow logic.
- 21extract emailSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 22Sort2Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 23If3Logic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 24Evualute when the mail was sentSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 25Evualute when the mail was sent1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 26Download File1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 27Text1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 28Execute a SQL querySource· n8n
Provides or transforms the contact data flowing through the workflow.
- 29If2Logic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 30Sort1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 31No Operation, do nothingSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 32If1Logic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 33IfLogic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 34Transcribe1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 35Scraper agentSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 36Only from email campaignsLogic· n8n
Routes items based on the workflow logic.
- 37Limit1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 38No Operation, do nothing2Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 39LimitSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 40SortSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 41No Operation, do nothing1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 42Sort3Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 43No Operation, do nothing4Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 44Generate query payloadSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 45Select already scraped mailsSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 46Set replied = Yes Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 47SwitchLogic· n8n
Routes items based on the workflow logic.
- 48MergeSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 49research about companySource· n8n
Provides or transforms the contact data flowing through the workflow.
- 50Limit2Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 51Limit4Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 52Create URLSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 53Keep only the new leadsSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 54Verify Email (BillionVerify)Verify· billionverify
The BillionVerify node verifies the address — status (valid / invalid / risky / catch-all / role / disposable), is_deliverable, and a confidence score — before anything is sent.
- 55Loop Over ItemsSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 56Loop Over Items1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 57Time ZoneSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 58General anlysisSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 59Switch5Logic· n8n
Routes items based on the workflow logic.
- 60Switch6Logic· n8n
Routes items based on the workflow logic.
- 61Run an ActorSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 62Already scrapedSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 63Create rows with new leadsSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 64IF deliverableLogic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 65Supabase3Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 66Mailgun1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 67Supabase4Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 68MailgunSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 69Sender EmailSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 70create email sequenceSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 71Loop Over Items7Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 72Loop Over Items10Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 73Loop Over Items8Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 74Loop Over Items11Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 75Extract InfoSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 76Set Telegram messageSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 77Get a messageSend· n8n
Sends only to verified, deliverable addresses. Swap in your own provider node if you send elsewhere.
- 78WaitSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 79Wait1Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 80Your leads tableSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 81CodeSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 82Supabase12Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 83Mailgun7Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 84Supabase14Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 85Mailgun6Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 86Supabase15Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 87Mailgun9Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 88Supabase16Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 89Mailgun8Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 90Only Keep Verified Emails Logic· n8n
Routes items based on the workflow logic.
- 91Limit3Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 92Professional Email Response AgentSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 93Wait7Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 94Wait10Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 95Wait8Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 96Wait11Source· n8n
Provides or transforms the contact data flowing through the workflow.
- 97Confirmation messageSource· n8n
Provides or transforms the contact data flowing through the workflow.
- 98Verify Email (BillionVerify) 2Verify· billionverify
The BillionVerify node verifies the address — status (valid / invalid / risky / catch-all / role / disposable), is_deliverable, and a confidence score — before anything is sent.
- 99IF deliverable 2Logic· n8n
Branches on the verification result: only deliverable addresses continue to the send; the rest are skipped and flagged.
- 100Create Draft ResponseSend· n8n
Sends only to verified, deliverable addresses. Swap in your own provider node if you send elsewhere.
Workflow JSON
Copy or download this workflow, then import it in n8n (Workflows → Import from File / Paste). Install the BillionVerify community node first, then add your API key credential.
verify-emails-in-mailgun.json
{
"name": "Complete B2B sales pipeline: Apollo lead gen, Mailgun outreach & AI reply management + BillionVerify",
"nodes": [
{
"id": "27d3a434-861b-42ad-9afa-702185011fdb",
"name": "Limit",
"type": "n8n-nodes-base.limit",
"position": [
-4976,
-1888
],
"parameters": {},
"typeVersion": 1
},
{
"id": "bc817fb8-404f-4482-b41b-f0b538bc4ff1",
"name": "Merge",
"type": "n8n-nodes-base.merge",
"position": [
-3168,
-1904
],
"parameters": {},
"typeVersion": 3.1
},
{
"id": "6eb543e3-64c7-4298-bf1d-d726dcfdc718",
"name": "Time Zone",
"type": "n8n-nodes-base.code",
"position": [
-3040,
-1904
],
"parameters": {},
"typeVersion": 2
},
{
"id": "ea3d549c-b95f-4258-8a66-4d72fd1a43e7",
"name": "Sender Email",
"type": "n8n-nodes-base.code",
"position": [
-2896,
-1904
],
"parameters": {},
"typeVersion": 2
},
{
"id": "54ac11cc-f759-483d-8bf0-d2ccdff434d2",
"name": "Switch",
"type": "n8n-nodes-base.switch",
"position": [
-5024,
-960
],
"parameters": {},
"typeVersion": 3.2
},
{
"id": "eda2f699-87e3-47e4-8f9f-35a3e0f5fc19",
"name": "Loop Over Items",
"type": "n8n-nodes-base.splitInBatches",
"position": [
-4816,
-1232
],
"parameters": {},
"typeVersion": 3
},
{
"id": "e2714426-3da1-46ce-a6fa-66ef4aaca18b",
"name": "Wait",
"type": "n8n-nodes-base.wait",
"position": [
-4368,
-1168
],
"webhookId": "c4cf719a-d47f-4761-8a16-aff92b8e9a19",
"parameters": {},
"typeVersion": 1.1
},
{
"id": "9df2eb32-4b8c-450b-9c78-2c2daa8350d4",
"name": "Loop Over Items1",
"type": "n8n-nodes-base.splitInBatches",
"position": [
-4816,
-736
],
"parameters": {},
"typeVersion": 3
},
{
"id": "154308b4-4316-4592-a483-14e4e4301ecf",
"name": "Wait1",
"type": "n8n-nodes-base.wait",
"position": [
-4368,
-672
],
"webhookId": "c4cf719a-d47f-4761-8a16-aff92b8e9a19",
"parameters": {},
"typeVersion": 1.1
},
{
"id": "3e5e8520-853e-4f46-8b52-192336c52fdb",
"name": "Schedule Trigger1",
"type": "n8n-nodes-base.scheduleTrigger",
"position": [
-5904,
-848
],
"parameters": {},
"typeVersion": 1.2
},
{
"id": "b98f7986-16a6-49e4-b301-cd86781c7a94",
"name": "If3",
"type": "n8n-nodes-base.if",
"position": [
-5344,
-1856
],
"parameters": {},
"typeVersion": 2.2
},
{
"id": "996e5962-a515-4052-b6d0-e703e2efefff",
"name": "Mailgun",
"type": "n8n-nodes-base.mailgun",
"onError": "continueRegularOutput",
"position": [
-4592,
-688
],
"parameters": {},
"typeVersion": 1
},
{
"id": "69d5fd6f-d628-4412-9d0c-cfdd4587e49f",
"name": "Mailgun1",
"type": "n8n-nodes-base.mailgun",
"onError": "continueRegularOutput",
"position": [
-4592,
-1200
],
"parameters": {},
"typeVersion": 1
},
{
"id": "c4699a8f-80da-40ba-bc94-eb10f44910c3",
"name": "General anlysis",
"type": "@n8n/n8n-nodes-langchain.openAi",
"position": [
-4400,
-2064
],
"parameters": {},
"typeVersion": 1.8
},
{
"id": "35873420-4131-4138-858e-463dee9925e2",
"name": "Limit1",
"type": "n8n-nodes-base.limit",
"position": [
-5248,
-960
],
"parameters": {},
"typeVersion": 1
},
{
"id": "2b768d85-ead6-42c2-ae25-ba1358265ef8",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
-3872,
-2160
],
"parameters": {},
"typeVersion": 1.2
},
{
"id": "292d0b42-39d3-4a0a-9aab-33cd784863df",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-5920,
-1392
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "fd6d0b46-e334-4122-9458-65fc751fab3e",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-5920,
-2416
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "92fce186-0d0d-4c29-af5b-43436367e4f7",
"name": "No Operation, do nothing",
"type": "n8n-nodes-base.noOp",
"position": [
-4896,
-1680
],
"parameters": {},
"typeVersion": 1
},
{
"id": "1d94f67a-5481-40b1-a023-c72440f2eced",
"name": "Supabase2",
"type": "n8n-nodes-base.supabase",
"position": [
-5728,
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],
"parameters": {},
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},
{
"id": "bc8a4879-e9fc-4076-831c-c64540334526",
"name": "If2",
"type": "n8n-nodes-base.if",
"position": [
-5456,
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],
"parameters": {},
"typeVersion": 2.2
},
{
"id": "95713afb-6b8e-40bd-a1f1-2204df391e20",
"name": "No Operation, do nothing2",
"type": "n8n-nodes-base.noOp",
"position": [
-5248,
-752
],
"parameters": {},
"typeVersion": 1
},
{
"id": "693a65b1-40ea-4eab-8f34-c38651d0ec1c",
"name": "Supabase3",
"type": "n8n-nodes-base.supabase",
"position": [
-4592,
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],
"parameters": {},
"typeVersion": 1
},
{
"id": "62e2b07a-fcb7-4a10-a124-775a2fd7ae07",
"name": "Supabase4",
"type": "n8n-nodes-base.supabase",
"position": [
-4592,
-848
],
"parameters": {},
"typeVersion": 1
},
{
"id": "a07358ac-2062-411e-b581-aab3f66529ff",
"name": "Structured Output Parser",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"disabled": true,
"position": [
-3648,
-2048
],
"parameters": {},
"typeVersion": 1.2
},
{
"id": "e3b55fe8-e670-421f-848c-ab4b85d8021a",
"name": "Code",
"type": "n8n-nodes-base.code",
"position": [
-3456,
-2320
],
"parameters": {},
"typeVersion": 2
},
{
"id": "f22a857d-0e66-4eb5-9471-ad37325c8885",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-4064,
-1408
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "298eadec-4cb4-43c8-83bb-69b4fde051e4",
"name": "Schedule Trigger3",
"type": "n8n-nodes-base.scheduleTrigger",
"position": [
-5808,
-1856
],
"parameters": {},
"typeVersion": 1.2
},
{
"id": "cf82532f-5757-4802-8eee-57ff328fd187",
"name": "Supabase11",
"type": "n8n-nodes-base.supabase",
"position": [
-3888,
-784
],
"parameters": {},
"typeVersion": 1
},
{
"id": "79436ed4-c6e9-4743-9d77-ff909a68851f",
"name": "If1",
"type": "n8n-nodes-base.if",
"position": [
-3600,
-784
],
"parameters": {},
"typeVersion": 2.2
},
{
"id": "0b986d68-7396-4f1c-915c-bc1bd32d41bc",
"name": "Evualute when the mail was sent",
"type": "n8n-nodes-base.code",
"position": [
-3744,
-784
],
"parameters": {},
"typeVersion": 2
},
{
"id": "b423eb64-3947-4663-8a0c-edb47d457242",
"name": "Sort",
"type": "n8n-nodes-base.sort",
"position": [
-3408,
-880
],
"parameters": {},
"typeVersion": 1
},
{
"id": "f405336d-2832-4d29-9a7d-7f2cade23dbd",
"name": "Sort1",
"type": "n8n-nodes-base.sort",
"position": [
-5152,
-1888
],
"parameters": {},
"typeVersion": 1
},
{
"id": "e83b6aee-8f9e-4bf4-b4a2-b39de6223e02",
"name": "Sort2",
"type": "n8n-nodes-base.sort",
"position": [
-5584,
-848
],
"parameters": {},
"typeVersion": 1
},
{
"id": "ab93c74b-1a5c-41ff-a618-a7699dbfef74",
"name": "Limit2",
"type": "n8n-nodes-base.limit",
"position": [
-3248,
-880
],
"parameters": {},
"typeVersion": 1
},
{
"id": "b2a7a07b-cce5-41af-95d2-9b192e7f399e",
"name": "Switch5",
"type": "n8n-nodes-base.switch",
"position": [
-3120,
-880
],
"parameters": {},
"typeVersion": 3.2
},
{
"id": "b9c899a3-f99c-44b0-ae45-9857da1d4ee5",
"name": "Loop Over Items7",
"type": "n8n-nodes-base.splitInBatches",
"position": [
-2896,
-1152
],
"parameters": {},
"typeVersion": 3
},
{
"id": "43a5a2ed-dd44-44f4-abf3-a0e9b85997fd",
"name": "Wait7",
"type": "n8n-nodes-base.wait",
"position": [
-2464,
-1104
],
"webhookId": "c4cf719a-d47f-4761-8a16-aff92b8e9a19",
"parameters": {},
"typeVersion": 1.1
},
{
"id": "3f2722af-7d15-4bd5-a328-4d6a118617d2",
"name": "Loop Over Items10",
"type": "n8n-nodes-base.splitInBatches",
"position": [
-2896,
-656
],
"parameters": {},
"typeVersion": 3
},
{
"id": "dec76f0f-f222-42cb-8165-5e6584ad584e",
"name": "Wait10",
"type": "n8n-nodes-base.wait",
"position": [
-2464,
-592
],
"webhookId": "c4cf719a-d47f-4761-8a16-aff92b8e9a19",
"parameters": {},
"typeVersion": 1.1
},
{
"id": "c1bd8891-cbd6-44f5-8594-f206fc2529af",
"name": "Mailgun6",
"type": "n8n-nodes-base.mailgun",
"onError": "continueRegularOutput",
"position": [
-2672,
-640
],
"parameters": {},
"typeVersion": 1
},
{
"id": "13f186e5-a58c-458f-b374-dcb35004ecdd",
"name": "Mailgun7",
"type": "n8n-nodes-base.mailgun",
"onError": "continueRegularOutput",
"position": [
-2672,
-1136
],
"parameters": {},
"typeVersion": 1
},
{
"id": "3cd89f07-ce84-41af-a4b8-04d262de3283",
"name": "Supabase12",
"type": "n8n-nodes-base.supabase",
"position": [
-2672,
-1344
],
"parameters": {},
"typeVersion": 1
},
{
"id": "98364fb0-f5d7-451f-83f9-57bc61c69f60",
"name": "Supabase14",
"type": "n8n-nodes-base.supabase",
"position": [
-2672,
-832
],
"parameters": {},
"typeVersion": 1
},
{
"id": "6224874f-8032-4cb3-8d1a-3176e6449a6b",
"name": "Schedule Trigger4",
"type": "n8n-nodes-base.scheduleTrigger",
"position": [
-4016,
-784
],
"parameters": {},
"typeVersion": 1.2
},
{
"id": "b6c62bcc-6000-4539-95e0-5209bd8f7aa9",
"name": "No Operation, do nothing1",
"type": "n8n-nodes-base.noOp",
"position": [
-3360,
-688
],
"parameters": {},
"typeVersion": 1
},
{
"id": "53b4c414-5f98-40dc-82d8-eb3cd1e46eba",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
-5216,
-304
],
"parameters": {
"content": ""
},
"typeVersion": 1
},
{
"id": "2c143a9c-c11c-4a59-bc1a-ad331eaee0f0",
"name": "Supabase13",
"type": "n8n-nodes-base.supabase",
"position": [
-4960,
304
],
"parameters": {},
"typeVersion": 1
},
{
"id": "6c0384cf-9efa-4e67-a2c3-65cfc35e0b29",
"name": "If",
"type": "n8n-nodes-base.if",
"position": [
-4528,
304
],
"parameters": {},
"typeVersion": 2.2
},
{
"id": "c806c9fa-78ae-4048-9b71-e38d8d3e1cad",
"name": "Evualute when the mail was sent1",
"type": "n8n-nodes-base.code",
"position": [
-4752,
304
],
"parameters": {},
"typeVersion": 2
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"index": 0
}
]
]
},
"Limit": {
"main": [
[
{
"node": "Merge",
"type": "main",
"index": 1
},
{
"node": "research about company",
"type": "main",
"index": 0
}
]
]
},
"Merge": {
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[
{
"node": "Time Zone",
"type": "main",
"index": 0
}
]
]
},
"Sort1": {
"main": [
[
{
"node": "Limit",
"type": "main",
"index": 0
}
]
]
},
"Sort2": {
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{
"node": "If2",
"type": "main",
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}
]
]
},
"Sort3": {
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{
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}
]
]
},
"Text1": {
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{
"node": "Scraper agent",
"type": "main",
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}
]
]
},
"Wait1": {
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{
"node": "Loop Over Items1",
"type": "main",
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}
]
]
},
"Wait7": {
"main": [
[
{
"node": "Loop Over Items7",
"type": "main",
"index": 0
}
]
]
},
"Wait8": {
"main": [
[
{
"node": "Loop Over Items8",
"type": "main",
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}
]
]
},
"Limit1": {
"main": [
[
{
"node": "Switch",
"type": "main",
"index": 0
}
]
]
},
"Limit2": {
"main": [
[
{
"node": "Switch5",
"type": "main",
"index": 0
}
]
]
},
"Limit3": {
"main": [
[
{
"node": "Confirmation message",
"type": "main",
"index": 0
}
]
]
},
"Limit4": {
"main": [
[
{
"node": "Switch6",
"type": "main",
"index": 0
}
]
]
},
"Switch": {
"main": [
[
{
"node": "Loop Over Items",
"type": "main",
"index": 0
}
],
[
{
"node": "Loop Over Items1",
"type": "main",
"index": 0
}
]
]
},
"Wait10": {
"main": [
[
{
"node": "Loop Over Items10",
"type": "main",
"index": 0
}
]
]
},
"Wait11": {
"main": [
[
{
"node": "Loop Over Items11",
"type": "main",
"index": 0
}
]
]
},
"Mailgun": {
"main": [
[
{
"node": "Wait1",
"type": "main",
"index": 0
}
]
]
},
"Switch5": {
"main": [
[
{
"node": "Loop Over Items7",
"type": "main",
"index": 0
}
],
[
{
"node": "Loop Over Items10",
"type": "main",
"index": 0
}
]
]
},
"Switch6": {
"main": [
[
{
"node": "Loop Over Items8",
"type": "main",
"index": 0
}
],
[
{
"node": "Loop Over Items11",
"type": "main",
"index": 0
}
]
]
},
"Mailgun1": {
"main": [
[
{
"node": "Wait",
"type": "main",
"index": 0
}
]
]
},
"Mailgun6": {
"main": [
[
{
"node": "Wait10",
"type": "main",
"index": 0
}
]
]
},
"Mailgun7": {
"main": [
[
{
"node": "Wait7",
"type": "main",
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}
]
]
},
"Mailgun8": {
"main": [
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{
"node": "Wait11",
"type": "main",
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}
]
]
},
"Mailgun9": {
"main": [
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{
"node": "Wait8",
"type": "main",
"index": 0
}
]
]
},
"Supabase2": {
"main": [
[
{
"node": "Sort2",
"type": "main",
"index": 0
}
]
]
},
"Time Zone": {
"main": [
[
{
"node": "Sender Email",
"type": "main",
"index": 0
}
]
]
},
"Create URL": {
"main": [
[
{
"node": "Run an Actor",
"type": "main",
"index": 0
}
]
]
},
"Supabase11": {
"main": [
[
{
"node": "Evualute when the mail was sent",
"type": "main",
"index": 0
}
]
]
},
"Supabase13": {
"main": [
[
{
"node": "Evualute when the mail was sent1",
"type": "main",
"index": 0
}
]
]
},
"Transcribe1": {
"main": [
[
{
"node": "Scraper agent",
"type": "main",
"index": 0
}
]
]
},
"Extract Info": {
"main": [
[
{
"node": "Only Keep Verified Emails ",
"type": "main",
"index": 0
}
]
]
},
"Run an Actor": {
"main": [
[
{
"node": "Extract Info",
"type": "main",
"index": 0
}
]
]
},
"Sender Email": {
"main": [
[
{
"node": "Your leads table",
"type": "main",
"index": 0
}
]
]
},
"User message": {
"main": [
[
{
"node": "Voice or Text1",
"type": "main",
"index": 0
}
]
]
},
"Get a message": {
"main": [
[
{
"node": "Professional Email Response Agent",
"type": "main",
"index": 0
}
]
]
},
"Get many rows": {
"main": [
[
{
"node": "If3",
"type": "main",
"index": 0
}
]
]
},
"Gmail Trigger": {
"main": [
[
{
"node": "extract email",
"type": "main",
"index": 0
}
]
]
},
"Scraper agent": {
"main": [
[
{
"node": "Generate query payload",
"type": "main",
"index": 0
},
{
"node": "Select already scraped mails",
"type": "main",
"index": 0
}
]
]
},
"Simple Memory": {
"ai_memory": [
[
{
"node": "Scraper agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"extract email": {
"main": [
[
{
"node": "Execute a SQL query",
"type": "main",
"index": 0
}
]
]
},
"Download File1": {
"main": [
[
{
"node": "Transcribe1",
"type": "main",
"index": 0
}
]
]
},
"Voice or Text1": {
"main": [
[
{
"node": "Download File1",
"type": "main",
"index": 0
}
],
[
{
"node": "Text1",
"type": "main",
"index": 0
}
]
]
},
"General anlysis": {
"main": [
[
{
"node": "create email sequence",
"type": "main",
"index": 0
}
]
]
},
"Loop Over Items": {
"main": [
[
{
"node": "Supabase3",
"type": "main",
"index": 0
}
],
[
{
"node": "Mailgun1",
"type": "main",
"index": 0
}
]
]
},
"Loop Over Items1": {
"main": [
[
{
"node": "Supabase4",
"type": "main",
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}
],
[
{
"node": "Mailgun",
"type": "main",
"index": 0
}
]
]
},
"Loop Over Items7": {
"main": [
[
{
"node": "Supabase12",
"type": "main",
"index": 0
}
],
[
{
"node": "Mailgun7",
"type": "main",
"index": 0
}
]
]
},
"Loop Over Items8": {
"main": [
[
{
"node": "Supabase15",
"type": "main",
"index": 0
}
],
[
{
"node": "Mailgun9",
"type": "main",
"index": 0
}
]
]
},
"Get Email History": {
"ai_tool": [
[
{
"node": "Professional Email Response Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Loop Over Items10": {
"main": [
[
{
"node": "Supabase14",
"type": "main",
"index": 0
}
],
[
{
"node": "Mailgun6",
"type": "main",
"index": 0
}
]
]
},
"Loop Over Items11": {
"main": [
[
{
"node": "Supabase16",
"type": "main",
"index": 0
}
],
[
{
"node": "Mailgun8",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "create email sequence",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Schedule Trigger1": {
"main": [
[
{
"node": "Supabase2",
"type": "main",
"index": 0
}
]
]
},
"Schedule Trigger3": {
"main": [
[
{
"node": "Get many rows",
"type": "main",
"index": 0
}
]
]
},
"Schedule Trigger4": {
"main": [
[
{
"node": "Supabase11",
"type": "main",
"index": 0
}
]
]
},
"Schedule Trigger6": {
"main": [
[
{
"node": "Supabase13",
"type": "main",
"index": 0
}
]
]
},
"Check Sent History": {
"ai_tool": [
[
{
"node": "Professional Email Response Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"OpenAI Chat Model1": {
"ai_languageModel": [
[
{
"node": "Scraper agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Set replied = Yes ": {
"main": [
[
{
"node": "Verify Email (BillionVerify)",
"type": "main",
"index": 0
}
]
]
},
"Execute a SQL query": {
"main": [
[
{
"node": "Only from email campaigns",
"type": "main",
"index": 0
}
]
]
},
"Set Telegram message": {
"main": [
[
{
"node": "Limit3",
"type": "main",
"index": 0
}
]
]
},
"Anthropic Chat Model1": {
"ai_languageModel": [
[
{
"node": "Professional Email Response Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Email Response Parser": {
"ai_outputParser": [
[
{
"node": "Professional Email Response Agent",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"create email sequence": {
"main": [
[
{
"node": "Code",
"type": "main",
"index": 0
}
]
]
},
"Generate query payload": {
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[
{
"node": "Create URL",
"type": "main",
"index": 0
}
]
]
},
"research about company": {
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[
{
"node": "General anlysis",
"type": "main",
"index": 0
}
]
]
},
"Keep only the new leads": {
"main": [
[
{
"node": "Already scraped",
"type": "main",
"index": 0
}
],
[
{
"node": "Already scraped",
"type": "main",
"index": 0
}
],
[
{
"node": "Already scraped",
"type": "main",
"index": 0
}
],
[
{
"node": "Create rows with new leads",
"type": "main",
"index": 0
}
]
]
},
"Only from email campaigns": {
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[
{
"node": "Set replied = Yes ",
"type": "main",
"index": 0
}
]
]
},
"Structured Output Parser1": {
"ai_outputParser": [
[
{
"node": "Scraper agent",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Create rows with new leads": {
"main": [
[
{
"node": "Set Telegram message",
"type": "main",
"index": 0
}
]
]
},
"Only Keep Verified Emails ": {
"main": [
[
{
"node": "Keep only the new leads",
"type": "main",
"index": 1
}
]
]
},
"Select already scraped mails": {
"main": [
[
{
"node": "Keep only the new leads",
"type": "main",
"index": 0
}
]
]
},
"Evualute when the mail was sent": {
"main": [
[
{
"node": "If1",
"type": "main",
"index": 0
}
]
]
},
"Evualute when the mail was sent1": {
"main": [
[
{
"node": "If",
"type": "main",
"index": 0
}
]
]
},
"Professional Email Response Agent": {
"main": [
[
{
"node": "Verify Email (BillionVerify) 2",
"type": "main",
"index": 0
}
]
]
},
"Verify Email (BillionVerify)": {
"main": [
[
{
"node": "IF deliverable",
"type": "main",
"index": 0
}
]
]
},
"IF deliverable": {
"main": [
[
{
"node": "Get a message",
"type": "main",
"index": 0
}
],
[]
]
},
"Verify Email (BillionVerify) 2": {
"main": [
[
{
"node": "IF deliverable 2",
"type": "main",
"index": 0
}
]
]
},
"IF deliverable 2": {
"main": [
[
{
"node": "Create Draft Response",
"type": "main",
"index": 0
}
],
[]
]
}
},
"settings": {}
}When to use this
- Cleaning a list before a Mailgun send or sync.
- Protecting Mailgun deliverability and sender reputation.
- Keeping bounce rates low so your sending is never throttled.
FAQ
Why verify before sending in Mailgun?
Verifying first keeps your bounce rate low, which protects your sender reputation and your results.
How do I import this workflow?
Download the JSON, then in n8n go to Workflows → Import from File (or paste it). Install the BillionVerify community node and add your API key credential.
What happens to risky or catch-all addresses?
They are routed to the false branch and excluded from the send. You decide whether to retry, review, or drop them.
Add verification to your workflow
Create a free account, grab your API key, and stop bounces before they happen.
Get started free