The Scenario
You're the sales operations analyst and you just got a Google Sheet — now converted to Excel — with 500 email addresses from the trade show three weeks ago. Some were typed on phones. Some were scanned from badges. A handful look like someone's cat walked across the keyboard.
RevOps wants the list in the CRM by end of day. But they specifically said: no addresses that will immediately hard-bounce.
Syntax checks aren't enough. A properly formatted email pointing at a mailbox that hasn't existed for six months will still bounce. The only way to know is SMTP verification.
The bad version:
- Upload the Excel to a batch SMTP verification service, wait for the results CSV
- Download it, open it alongside the workbook, match rows by email string
- Find 15 rows where the results CSV reformatted the address (stripped a plus sign, changed case) and the match fails
Your RevOps manager checks in every 45 minutes. You've been at this for two hours.
The Easy Way: One Prompt in SheetXAI
SheetXAI is an AI agent inside your Excel workbook. Through its built-in Neutrino integration, it runs SMTP-level verification on every address in column A and writes the deliverability result and status directly into the workbook — same rows, no re-importing.
For each email in column A, use Neutrino email verify with SMTP check and write the deliverability result in column B and the status reason in column C. Mark any address that cannot be verified as UNKNOWN in column B.
What You Get
- Column B: deliverable, undeliverable, or unknown for every address
- Column C: the SMTP status reason — mailbox not found, domain no MX, etc.
- UNKNOWN rows are explicit so you can decide whether to hold or follow up before the CRM import
- No file merging, no row alignment problems
What If the Data Is Not Quite Ready
Several addresses have obvious domain typos
For each email in column A, check whether the domain looks like a common typo of a major provider. If so, correct it and write the corrected email in column B. Then run Neutrino SMTP verification on the corrected address and write the result in column C and status in column D.
You want to set aside role-based addresses before verification
Flag role-based addresses in column A (info, support, sales, admin, help, contact) with ROLE in column B. For all remaining addresses, run Neutrino SMTP verification and write the result in column C and status in column D.
You need a summary by lead source
Run Neutrino SMTP verification on all emails in column A. Write the result in column C. Then produce a summary table showing, for each unique source in column B, the count of deliverable and undeliverable addresses.
Full cleanup and verification in one pass
Trim whitespace from column A, correct obvious domain typos, remove duplicate addresses, run Neutrino SMTP verification on each unique email, write the result in column C and reason in column D, flag duplicates with DUPLICATE in column E, and add a summary at the bottom showing total deliverable, undeliverable, and unknown counts.
Try It
Get the 7-day free trial of SheetXAI and open your trade show Excel workbook, then ask SheetXAI to run Neutrino SMTP verification on the email column before your CRM import. See also the bulk email validation spoke if you want a syntax and domain check as a fast first pass.