MailerSend connector
Set up the MailerSend connector in Kaivo: authentication, configuration, the 1 BigQuery tables it syncs, and answers to common questions.
Written By Lauri Raivio
Last updated About 4 hours ago
Kaivo is a fully managed data platform that syncs your MailerSend data into a Google BigQuery warehouse and keeps it up to date automatically. There is no pipeline to build and no infrastructure to run, so you can spend your time analysing your survey and email data instead of moving it.
What is the MailerSend connector
Sync your MailerSend delivery data into BigQuery with Kaivo to monitor email deliverability and engagement.
Getting started with the MailerSend connector
- Sign up for Kaivo and create a workspace.
- Connect your MailerSend account.
- Choose which tables to sync.
- Wait for the initial sync to finish.
- Query your data in BigQuery or your favourite AI or BI tool.
Authenticating MailerSend
Authenticate with your API Token.
MailerSend only retains email activity for the last 1–30 days (depending on your plan), so only that recent window can be synced.
Configuring the MailerSend connector
When you set up the connector, you provide:
Tables and columns synced from MailerSend
Kaivo syncs 1 table from MailerSend into a dedicated dataset in your BigQuery warehouse. Click any table to see its columns and types.
How the MailerSend sync works
After the first load, Kaivo keeps your BigQuery warehouse up to date for you. Where MailerSend supports it, each sync pulls only new and changed records so it stays fast; otherwise it refreshes the whole table. Every record keeps its original ID, so you won't get duplicate rows.
Frequently asked questions
How long does the initial sync take for MailerSend?
It depends on how much history is in your MailerSend account. Most initial syncs finish within minutes, while large accounts can take a few hours. After that, syncs only fetch new and changed records, so they're much faster.
Can I sync only some tables or columns?
Yes. You pick which tables to sync when you set up the connection and can change the selection later. Tables you don't select are never copied to your warehouse.
What happens when MailerSend's schema changes?
New fields are never added automatically. You choose which fields to sync, so data you haven't selected (sensitive personal data, for example) never lands in your warehouse. When a new field appears, it becomes available for you to add. What happens to removed or renamed fields depends on a table's sync mode: full-refresh tables always match what's currently in MailerSend, so dropped fields disappear, while incremental tables keep their existing columns and history, so an old field stays and newly added fields fill in over time.
How do I handle GDPR or data deletion requests?
Your data lives in your own Kaivo-managed BigQuery warehouse, so the most direct option is to delete or anonymise specific records right in BigQuery. If you delete data in MailerSend instead, full-refresh tables drop it on the next sync, while incremental tables keep it, so you would remove the row in BigQuery or ask us to run a full refresh. To remove everything, delete the MailerSend connector in Kaivo and all of its synced data is deleted with it.
Common use cases for MailerSend data
Deliverability monitoring
Use activity to track delivered, bounced, and failed messages over time.
Engagement tracking
Use activity to measure opens and clicks across your sends.
Product context
Join delivery data with your product data to connect emails to user actions.
Use MailerSend data in your AI and BI tools
Once MailerSend data lands in your Kaivo-managed BigQuery warehouse, you can explore it with AI tools or any BI tool that connects to BigQuery. Here's how the most common destinations work with MailerSend data.
Claude
Use Kaivo's MCP server to give Claude secure, workspace-scoped access to your data. Setup guide →
Power BI
Microsoft's BI tool with a native BigQuery connector. Supports direct query and scheduled refresh. Setup guide →
Data Studio
Free Google BI tool with native BigQuery support. One-click connection to your Kaivo warehouse; great for SMB teams on Google Workspace. Setup guide →
Tableau
The premium analytics standard, with native BigQuery integration. Setup guide →
Google Sheets
Use Connected Sheets to query BigQuery directly from a spreadsheet, with no SQL. Setup guide →
Excel
Connect via Power Query's BigQuery connector. Setup guide →
Metabase
Open-source BI tool with strong BigQuery support. Setup guide →
See our pricing page for MailerSend connector pricing and plan details.