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SendGrid · Google Sheets Guide

Scrub a Google Sheet Against SendGrid Suppression Lists

2026-05-13
4 min read
See the Excel version →

The Scenario

You are a CRM admin. The re-engagement campaign goes out next Monday. Sitting in a Google Sheet:15,000 customer email addresses that have not been emailed in 18 months. Before any of them land in SendGrid's send queue, they need to be checked against the bounce list, block list, invalid address list, and spam report list.

Send to a bounce and your deliverability score takes a hit. Send to a spam report and you risk account suspension. The safe thing to do is check every single row.

The slow version:

  • Export each suppression list from SendGrid as a separate CSV
  • Load all four CSVs into Google Sheets as separate tabs
  • Write VLOOKUP formulas to cross-reference all four against column A
  • Merge the results into a single status column
  • Go back into SendGrid and manually delete the actionable suppressions
  • Two full days of formula work and manual clicking. The campaign is late.

The fast version is one prompt.

The Easy Way: One Prompt in SheetXAI

SheetXAI is an AI agent inside your spreadsheet that calls the SendGrid suppression APIs, classifies every email in your sheet, and cleans up the records in SendGrid, all in one operation.

Open the SheetXAI sidebar and type:

For each email in column A, check SendGrid and write in column B whether it's a 'bounce', 'block', 'invalid', 'spam_report', or 'clean'. Once all rows are classified, delete every 'bounce' and 'invalid' entry from SendGrid's suppression list so I can re-attempt delivery on those addresses.

SheetXAI works through all 15,000 rows, writes a classification into column B for each one, and then removes the actionable suppression records from SendGrid. The sheet is your audit log.

What You Get

A classified sheet with five possible statuses in column B:

  • "clean" — safe to send
  • "bounce" — previously bounced; removed from SendGrid after the run
  • "block" — blocked by the receiving server; flagged for review
  • "invalid" — malformed or non-existent address; removed from SendGrid
  • "spam_report" — recipient marked you as spam; do not contact

The bounce and invalid records are gone from SendGrid's suppression list after the run, which means future sends to those addresses will be attempted rather than silently skipped.

The sheet gives compliance a full record of every decision made on every row.

What If the Data Is Not Quite Ready

Suppression scrubs rarely involve clean input data.

When email addresses have trailing spaces or inconsistent capitalization

Your export has "User@Example.com" and "user@example.com " mixed together.

Trim whitespace from every email in column A and convert them all to lowercase. Then check each cleaned email against SendGrid's bounce, block, invalid, and spam_report lists and write the result in column B.

Column C has a flag — "reconfirmed_consent" — for contacts who filled out a re-consent form.

For each email in column A, check SendGrid's suppression lists and write the result in column B. Then, for every row where column C says 'reconfirmed_consent' and column B says 'bounce' or 'invalid', remove that email from SendGrid's global suppression list and write 'removed' or 'not_found' in column D.

When you want to flag spam reports for a different workflow

Spam report contacts should go to customer success for outreach, not back into the email queue.

Check all emails in column A against SendGrid suppression lists. Write the category in column B. For any row where column B is 'spam_report', write 'FLAG — route to CS' in column C. Leave column C blank for all other categories.

When the sheet has multiple email columns and you want to check all of them

Your export has a primary email in column A and an alternate email in column D. Both need to be scrubbed before the send.

For each row, check both the email in column A and the email in column D against SendGrid's bounce, block, invalid, and spam_report lists. Write the status for column A's email in column B and the status for column D's email in column E. If both emails for the same row are suppressed, write 'BOTH SUPPRESSED' in column F.

The pattern: the suppression check and the cleanup are one operation. You do not export four CSVs and write VLOOKUP formulas. You ask.

Try It

Get the 7-day free trial of SheetXAI and open any sheet with a contact list, then ask it to check every email against SendGrid's suppression lists. The SendGrid integration is included in every SheetXAI plan. For related workflows, see how to bulk-add emails to SendGrid suppression groups or the SendGrid in Google Sheets overview.

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