emailfinder.dev + Gmail
Use emailfinder.dev alongside Gmail to find and verify professional email addresses before sending. Integrate via Google Apps Script, Zapier, or your outreach tool to ensure every email you send from Gmail reaches a real inbox.
What you can do with this integration
- ✓Look up a prospect's verified email before drafting a cold email in Gmail
- ✓Enrich a Google Sheets prospect list with emails, then send via Gmail
- ✓Use Apps Script to trigger email lookups from a Gmail sidebar
- ✓Verify an email address before adding it to a Gmail outreach campaign
How to set it up
Build a prospect list in Google Sheets
Create a spreadsheet with columns for First Name, Last Name, and Company Domain.
Add an Apps Script function
Write a Google Apps Script function that calls the emailfinder.dev API for each row and writes the verified email back to the sheet.
Send from Gmail
Use Gmail's built-in mail merge or a tool like Yet Another Mail Merge (YAMM) to send personalized emails to your enriched list.
Or use a dedicated sequencer
For higher volume, pipe your verified list into a sequencer (Instantly, Lemlist) that sends via your connected Gmail account.
Code example
// Google Apps Script — enrich Google Sheets with emailfinder.dev
function enrichWithEmails() {
const sheet = SpreadsheetApp.getActiveSheet();
const rows = sheet.getDataRange().getValues();
const API_KEY = 'YOUR_API_KEY';
rows.forEach((row, i) => {
if (i === 0 || row[3]) return; // skip header and filled rows
const [firstName, lastName, domain] = row;
const url = `https://www.emailfinder.dev/api/find-email/person`
+ `?full_name=${encodeURIComponent(firstName + ' ' + lastName)}`
+ `&domain=${domain}`;
const response = UrlFetchApp.fetch(url, {
headers: { Authorization: `Bearer ${API_KEY}` }
});
const { valid_email } = JSON.parse(response.getContentText());
if (valid_email) sheet.getRange(i + 1, 4).setValue(valid_email);
});
}Gmail integration FAQ
Can I use emailfinder.dev directly inside Gmail?
Not as a native Gmail add-on yet. The most practical approach is a Google Sheets + Apps Script workflow where you enrich a list and then send via Gmail or a connected tool.
Will using verified emails improve my Gmail deliverability?
Yes. Sending to verified, deliverable inboxes reduces your bounce rate. A high bounce rate signals to Gmail that you're sending to bad addresses, which damages your sender reputation over time.
How many emails can I send from Gmail per day?
Personal Gmail accounts: 500/day. Google Workspace accounts: 2,000/day. If you need more, use a dedicated sending infrastructure (Instantly, Smartlead) connected to your Gmail address.
Does this work with Google Workspace?
Yes. The Apps Script approach works identically for both personal Gmail and Google Workspace accounts.
Other integrations
Start integrating with Gmail
Free credits included. No credit card required. REST API with Bearer token auth.