Bulk Verify an Email List From a Excel With Kickbox

The Scenario

You exported 3,200 trade show leads into an Excel workbook six days ago. Column A is email addresses. Columns B through F are company, title, phone, region, and source. The sales team wants the list cleaned and segmented before it goes into Salesforce — ideally by end of day Thursday, because the BDR sequence kicks off Friday morning.

You've never used Kickbox's API directly. The options you know are: use Kickbox's bulk upload UI, download the results CSV, then figure out how to match the verdict rows back to your 3,200 workbook rows by email address.

The bad version:

• Export the workbook as a CSV, upload to Kickbox dashboard, wait 10–20 minutes, download the results file.
• Open the results CSV and the original workbook side by side, match rows by email address (they won't be in the same order), and paste verdict, score, and reason into columns G, H, and I manually.
• Discover that 200 rows got shifted because the CSV export dropped some special characters — spend another hour repairing the alignment.

Three hours of cleanup before the list is even usable. The BDR sequence doesn't care about your afternoon.

The Easy Way: One Prompt in SheetXAI

SheetXAI is an AI agent that lives inside your Excel workbook. It reads the data, connects to Kickbox through its built-in integration, and writes results back into the cells you name — without a CSV round-trip, a results file, or any manual row-matching.

Verify every email in column A using Kickbox and write the verification result, quality score, and reason back into columns B, C, and D

What You Get

• Column B receives the Kickbox result field: deliverable, risky, undeliverable, or unknown.
• Column C receives the sendex quality score (0.00–1.00).
• Column D receives the reason string — the machine-readable code explaining the result (e.g., accepted_email, invalid_email, low_quality).
• Rows are updated in place, preserving your existing columns E through F.
• Any row where Kickbox returns an API error is marked with an error flag in column B so you can see exactly which addresses didn't complete.

What If the Data Is Not Quite Ready

The email column has leading or trailing spaces

Trade show CSV exports frequently pad addresses with whitespace, which causes Kickbox to return invalid_email on addresses that are actually valid.

Trim all whitespace from every cell in column A, then verify each email with Kickbox and write the result and sendex score into columns B and C

Some rows are missing an email address entirely

Blank rows in column A will cause the verification run to skip or error depending on how the data arrived.

Skip any blank cells in column A, verify all remaining emails with Kickbox, write the result in column B, and put 'MISSING' in column B for any row where column A is empty

Contacts are split across two worksheets — main list in 'Leads' and overflow in 'Overflow'

Combine all emails from column A of the 'Leads' worksheet and column A of the 'Overflow' worksheet, deduplicate by email address, verify each one with Kickbox, and write the result back to column B in whichever worksheet the email came from

The list needs full cleanup before Salesforce import — deduplicate, verify, and flag

Deduplicate column A by email address keeping the first occurrence, verify each unique email with Kickbox, mark column B as KEEP for deliverable results and REMOVE for undeliverable or disposable, then sort the workbook so all REMOVE rows are grouped at the bottom

One prompt handles the pre-import audit end to end.

Try It

Get the 7-day free trial of SheetXAI and open the Excel workbook where your trade show leads live, then ask it to verify column A with Kickbox and write back the verdict and score. Once it's done, check out the disposable email flagging spoke or the hub overview for the full method comparison.