The Scenario
The client asked a simple question: which of their contacts are already suppressed in MailerSend?
You are an email deliverability consultant mid-way through an account audit. The client runs a B2B services firm and has been using MailerSend to send from one primary domain for two years. They have a CRM export with 5,000 contact records and a strong suspicion that some of those people have unsubscribed or filed spam complaints — but nobody has cross-referenced the two lists since the account was set up.
The bad version:
- Export the recipient list from MailerSend, get a CSV that comes back with 4 columns in an order that matches none of the CRM export.
- Open both files, manually align the email address columns, start using VLOOKUP to find overlaps, realize 300 records in the CRM export have trailing spaces that break the match.
- Flag the unsubscribes, flag the spam complaints, discover midway that the MailerSend export does not distinguish between the two — they both came in as "suppressed" without a reason field.
The client is waiting on this analysis. You are doing data archaeology.
The Easy Way: One Prompt in SheetXAI
SheetXAI is an AI agent that lives inside your Google Sheet. It connects to MailerSend and can pull the full recipient list for a domain directly into your sheet, so you can cross-reference against the CRM export without touching a CSV.
Get all recipients from my primary MailerSend sending domain and put email address and status into columns A and B of this sheet
What You Get
- Column A: email address for every recipient record on the domain
- Column B: recipient status (active, unsubscribed, spam_complaint, bounced)
- Records come in directly — no CSV import, no column remapping
- Status values are exactly what MailerSend returns, so you can filter or COUNTIF against them immediately
What If the Data Is Not Quite Ready
You want only suppressed addresses and need to know why
List every MailerSend recipient with status unsubscribed or spam_complaint in this sheet with their email address in column A, status in column B, and the date they were added to the suppression list in column C
You want to cross-reference against the CRM list already in the sheet
Pull all MailerSend recipients from my primary domain into columns A and B with email and status, then in column C write SUPPRESSED for any email that appears in column E of this sheet
The CRM export has inconsistent email casing and you need a clean match
Get all MailerSend recipients with status unsubscribed or spam_complaint into columns A and B, then in column C write TRUE for any email that matches — case-insensitive — any address in column E of this sheet
Full kill chain: pull suppressed list, cross-reference, and write a summary
List all MailerSend recipients with status unsubscribed or spam_complaint into columns A and B, flag in column C any email that appears in the CRM list in column E, count the flagged rows and write the total in cell E1 with the label Contacts to Remove, and copy those flagged emails into column G starting at G2
You do not need to pull the data first and then write the cross-reference separately — the comparison and the pull can happen in one pass.
Try It
Open the Google Sheet where you have your CRM export or contact list, then Get the 7-day free trial of SheetXAI and ask it to pull your MailerSend recipient list directly alongside it. For a complete deliverability audit, you can also pull your message logs or sender identities from the same sheet.