How to Improve Email Delivery Rate on SendGrid: 1-Min Guide

How to Improve Email Delivery Rate on SendGrid

Updated on:

June 5, 2026

By:

Use this interactive demo to learn how to authenticate your domain and boost email deliverability in SendGrid.

Quick summary

This tutorial shows how to improve email delivery rate in SendGrid by completing domain authentication via DNS records. Setting up Sender Authentication verifies your sending domain, reduces spam filtering, and increases inbox placement rates.

Steps

Log into your SendGrid account and go to Settings in the left panel.
Find and select Sender Authentication.
Click Get Started under Authenticate Your Domain.
Select your DNS provider from the list (e.g., Cloudflare).
Click Next to continue.
Enter your website domain and click Next.
Copy the generated DNS records, then go to your domain registrar (e.g., GoDaddy, Namecheap) and open DNS Management. Add a new CNAME record for each of the first three lines, add a new TXT record for the last line, and paste the values exactly as shown.

📌 Why this matters

Domain authentication is a critical step for any business using SendGrid to send transactional or marketing emails. By verifying your sending domain through CNAME and TXT DNS records, you establish trust with inbox providers like Gmail and Outlook, which directly improves email deliverability and reduces the chance of messages landing in spam. Without proper sender authentication, even legitimate emails risk being flagged, damaging both engagement rates and sender reputation. Completing this setup ensures your emails reach recipients reliably, protecting your brand and maximizing the ROI of every campaign you send.

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