AWS Transcribe email verification with BillionVerify
AWS Transcribe is an automatic speech recognition (ASR) service that converts audio and video content into accurate text transcripts. It supports custom vocabularies, speaker diarization, and real-time streaming, making it useful for call center analytics, meeting summaries, accessibility tooling, and content indexing pipelines.
Why verify before the send
Voice interactions — support calls, intake interviews, spoken sign-up flows — sometimes include an email address dictated by the customer. Speech-to-text transcription introduces phonetic errors and spacing issues that render an email syntactically invalid or misidentify the domain. Before acting on a transcribed email address, passing it through BillionVerify ensures the address actually exists and is deliverable, preventing wasted follow-up attempts and bounce penalties.
Ready-to-use n8n workflow
Import this workflow into n8n — it verifies every address with BillionVerify before AWS Transcribe sends, so only deliverable contacts are emailed. Install the BillionVerify community node first, then add your API key.
{
"name": "Verify emails before sending in AWS Transcribe + BillionVerify",
"nodes": [
{
"parameters": {},
"type": "n8n-nodes-base.manualTrigger",
"typeVersion": 1,
"position": [
240,
300
],
"name": "When clicking ‘Test workflow’"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "email-field",
"name": "email",
"value": "jane@example.com",
"type": "string"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
460,
300
],
"name": "Get contacts"
},
{
"parameters": {
"sendTo": "={{ $json.email }}",
"subject": "Message for AWS Transcribe contacts",
"message": "Replace this Gmail send with your AWS Transcribe node — only deliverable, verified contacts reach it.",
"options": {}
},
"type": "n8n-nodes-base.gmail",
"typeVersion": 2.1,
"position": [
900,
300
],
"name": "Send email",
"webhookId": "",
"credentials": {
"gmailOAuth2": {
"id": "",
"name": "Gmail account"
}
}
},
{
"parameters": {
"operation": "verify",
"email": "={{ $json.email }}",
"additionalOptions": {}
},
"type": "n8n-nodes-billionverify.billionVerify",
"typeVersion": 1,
"position": [
540,
300
],
"name": "Verify Email (BillionVerify)",
"credentials": {
"billionVerifyApi": {
"id": "",
"name": "BillionVerify account"
}
}
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "is-deliverable",
"leftValue": "={{ $json.is_deliverable }}",
"rightValue": "",
"operator": {
"type": "boolean",
"operation": "true",
"singleValue": true
}
}
]
}
},
"type": "n8n-nodes-base.if",
"typeVersion": 2,
"position": [
720,
300
],
"name": "IF deliverable"
}
],
"connections": {
"When clicking ‘Test workflow’": {
"main": [
[
{
"node": "Get contacts",
"type": "main",
"index": 0
}
]
]
},
"Get contacts": {
"main": [
[
{
"node": "Verify Email (BillionVerify)",
"type": "main",
"index": 0
}
]
]
},
"Verify Email (BillionVerify)": {
"main": [
[
{
"node": "IF deliverable",
"type": "main",
"index": 0
}
]
]
},
"IF deliverable": {
"main": [
[
{
"node": "Send email",
"type": "main",
"index": 0
}
],
[]
]
}
},
"settings": {
"executionOrder": "v1"
}
}Workflow templates with AWS Transcribe
Ready-to-use workflows that verify emails before AWS Transcribe sends.
How it works
- 1
Configure an n8n workflow to trigger when AWS Transcribe completes a transcription job and the output lands in S3.
- 2
Parse the transcript JSON to locate and extract the email address mentioned in the spoken content.
- 3
Send the extracted address to BillionVerify via the n8n community node or a REST API HTTP Request node.
- 4
Receive a structured verdict covering syntax validity, mailbox existence, disposable-domain status, and MX record availability.
- 5
Route the workflow based on the result: valid addresses proceed to CRM creation or follow-up automation; unverified addresses are flagged for manual review.
When to use this
Verify email addresses captured during customer support calls
When AWS Transcribe extracts an email address from a call recording, verify it with BillionVerify before logging the contact. Phonetic transcription errors often produce plausible-looking but non-existent addresses that would fail silently in follow-up campaigns.
Validate spoken sign-up emails in voice-driven onboarding
Voice assistants and IVR systems that collect registration details via AWS Transcribe benefit from immediate email verification. BillionVerify confirms the transcribed address is real before the record is created in your system.
Enrich transcript metadata with deliverability status
Add BillionVerify's verification result as a structured field alongside the Transcribe output, giving your review team and downstream automations an instant signal about whether to trust the captured email.
FAQ
Why do spoken email addresses fail verification more often than typed ones?
ASR systems map phonemes to text, which can confuse similar-sounding characters — 'B' vs 'D', 'M' vs 'N' — and mis-transcribe domain names. BillionVerify catches these malformed results before they propagate downstream.
Is there a way to set up this verification without writing an n8n workflow?
Yes. Integrately provides a 1-click automation that links AWS Transcribe job completion to a BillionVerify check, requiring no code or automation expertise.
What should I do when BillionVerify flags a transcribed email as invalid?
Return to the audio source if possible and re-listen to the spoken address. If the transcript cannot be corrected, flag the contact for a manual callback rather than sending to an unverified address.
Can BillionVerify also handle emails found in meeting transcripts processed by Transcribe?
Absolutely. Any email address appearing in a Transcribe output — whether from a meeting recording, podcast, or support call — can be extracted and verified through the same workflow.
Verify emails in AWS Transcribe
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