Automatically verify new email addresses in Google Sheets

Checks every new email added to your spreadsheet against two verification services and logs whether it's deliverable.

How the work actually flows

It branches. Every path runs; all paths must finish before it continues.

Pattern: Parallel Split (2) ยท Synchronisation (3)

flowchart TD trig[\"new email added to sheet"\]:::trigdata s0[("read new email row")]:::store s1["skip blank rows"]:::task s2[("write result to sheet")]:::store trig --> s0 s0 --> s1 gx{"+ verify with two services"}:::gate s1 --> gx p00["check with hunter.io"]:::task gx -->|"hunter.io check"| p00 p10["check with emailvalidation.io"]:::task gx -->|"emailvalidation.io check"| p10 jn{"+ combine results"}:::gate p00 --> jn p10 --> jn jn --> s2 out[/"email marked valid or invalid"/]:::out pay{{"cleaner list improves deliverability"}}:::pay s2 --> out out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff
Starts itA stepA record or sheetEvery pathWaits for allResultPayoff
Build size
Standard

A mid-size build with several tools working together.

Business functions
Email AutomationSpreadsheet & Database Ops
Connects
Google SheetsHunter.ioEmailValidation.io

The problem it solves

Sending campaigns to a list full of bad or fake email addresses hurts your deliverability and wastes money on emails that bounce. Checking each address by hand before every send just isn't realistic for a growing list.

Who it fits

Businesses running email marketing or managing a growing contact list.

How it works

  1. A new email entered into your Google Sheet starts the process
  2. Blank rows are skipped automatically
  3. The email is checked against Hunter.io and EmailValidation.io
  4. The deliverability result is written back into the same spreadsheet row
What you get

Email addresses confirmed deliverable before you send

Every new email you add to your spreadsheet gets checked and marked as deliverable or not automatically.

What you get

A spreadsheet where every email address is automatically marked as valid or invalid.

What you need

A Google Sheets account, a Hunter.io account, and an EmailValidation.io account.

We can build this. But should you?

The hard question is not how to build it. It is whether this is the right thing to build first.

That is what a Fractional Chief AI Officer figures out with you, before anyone writes a line of code.

Let's Talk Strategy

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