Automatically verify email addresses in your Google Sheet

Checks new email addresses in your spreadsheet every hour and marks each one valid, invalid, or unknown.

How the work actually flows

A straight line. Runs once per each new unverified email.

Pattern: Sequence (1) ยท Multiple Instances with a priori Design-Time Knowledge (13)

flowchart TD trig(["every hour"]):::trigtime s0["Check sheet for new emails"]:::task s1[["Verify email address"]]:::mi s2[("Update status in sheet")]:::store trig --> s0 s0 -->|"one per each new unverified email"| s1 s1 --> s2 out[/"spreadsheet with verification status"/]:::out pay{{"cleaner list before outreach"}}:::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 stepRuns once per itemA record or sheetResultPayoff
Build size
Standard

A mid-size build with several tools working together.

Business functions
CRM & Sales PipelineLead Generation & ProspectingEmail AutomationSpreadsheet & Database Ops
Connects
Google SheetsRapid Email Verifier

The problem it solves

Bad email addresses on your contact list quietly hurt your deliverability and waste time on leads that were never real to begin with. Checking each one by hand doesn't scale once your list grows past a handful of rows.

Who it fits

Sales, marketing, and CRM teams who maintain contact lists and want them clean before a campaign or outreach push.

How it works

  1. Checks your spreadsheet every hour for new email entries
  2. It skips any row that's already been verified
  3. Each new email is sent to a verification service
  4. The spreadsheet is updated with valid, invalid, or unknown status
What you get

Contact lists you can trust before sending

You get every new email address in your spreadsheet checked hourly and marked valid, invalid, or unknown automatically.

What you get

An up-to-date spreadsheet showing the verification status of every email on your list.

What you need

A Google Workspace account and a Rapid Email Verifier API key.

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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