How To Set Up Mass Mailing On SendGrid

Updated on:

May 12, 2026

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Use this interactive demo to learn how to set up mass mailing with a contact list in SendGrid.

Quick summary

This walkthrough shows you how to set up mass mailing on SendGrid by creating a contact list and importing recipients via CSV upload. Follow each step to configure your mailing list and map contact fields so your bulk email campaign is ready to send.

Steps

Go to Marketing → Contacts in the left sidebar.
Click Create > New List to start a new contact list.
Give your list a name and click Save List.
Open your newly created list.
Click Upload CSV to begin importing contacts.
Drag and drop your contact list file in CSV format into the upload area.
Click Next: Review CSV Upload to proceed to the review step.
Map all relevant fields and skip any that are not important.
Click Skip Unmapped to ignore irrelevant unmapped fields.
Finally, hit Next: Add Contacts to complete the import.

📌 Why this matters

Setting up mass mailing in SendGrid requires a properly structured contact list, and getting that import process right is critical to deliverability and campaign accuracy. SendGrid's Marketing Contacts feature lets you upload recipients via CSV, map custom fields, and organize lists for targeted bulk email sends. This matters because a clean, well-mapped contact list directly reduces bounce rates and improves email deliverability for high-volume campaigns. For teams managing large subscriber bases, mastering the SendGrid contact import workflow saves time and ensures every mass email reaches the right audience.

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