Verify Email

Give it an email address and find out whether it is safe to send to.

What it does

• Checks the address against several verification providers in sequence and stops at the first definitive verdict.
• Returns Verified only when the address is deliverable. Everything else — undeliverable, or a check that could not decide — is Unverified.
• Charges 0.2 credits when a provider gives a verdict, deliverable or not. A check that comes back inconclusive is free.
• Takes the address only. It does not find addresses — use work-email or personal-email for that.

Same check as the verify_email MCP tool.

Request body

Examples

curl https://api.syncgtm.com/v1/api/enrich/verify-email \
  -H "Authorization: Bearer $SYNCGTM_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"email": "jane@stripe.com"}'

const res = await fetch("https://api.syncgtm.com/v1/api/enrich/verify-email", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.SYNCGTM_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ email: "jane@stripe.com" }),
});
 
const { status } = await res.json();
const safeToSend = status === "Verified";

import os
import requests
 
res = requests.post(
    "https://api.syncgtm.com/v1/api/enrich/verify-email",
    headers={"Authorization": f"Bearer {os.environ['SYNCGTM_API_KEY']}"},
    json={"email": "jane@stripe.com"},
    timeout=90,
)
res.raise_for_status()
safe_to_send = res.json()["status"] == "Verified"

Response

{ "status": "Verified", "data": { "email": "jane@stripe.com" } }

{ "status": "Unverified", "data": { "email": "jane@stripe.com" } }

Unlike the find endpoints, verify-email never returns not_found — data is always present.

Tips

• Send only Verified addresses to a sequence. Unverified covers both undeliverable and inconclusive results; treat it as “do not send” unless you have a separate reason to trust the address.
• Verified includes catch-all domains. A catch-all server accepts mail for any address, so the check cannot prove the mailbox exists. For a high-stakes send, watch your bounce rate on those domains.
• Verify close to send time. Addresses decay as people change jobs — a list verified six months ago needs another pass.
• Chain it after a find. work-email → verify-email is two requests and 1.2 credits for an address you can actually send to.

Errors

All codes are on the Errors page.

Related endpoints