How To Avoid Emails Going To Spam SendGrid

Updated on:

May 12, 2026

By:

Use this interactive demo to learn how to authenticate your domain in SendGrid to stop emails landing in spam.

Quick summary

Setting up domain authentication in SendGrid tells email providers that your messages are legitimate, which significantly reduces the chance of emails going to spam. This process involves adding DNS records (CNAME and TXT) to your domain registrar so SendGrid can verify your sending domain.

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 — for example, Cloudflare.
Click Next to proceed.
Enter your website domain and hit Next.
Copy the generated DNS records, then go to your domain registrar (e.g. GoDaddy, Namecheap) and find DNS Management. Create a new CNAME record for each of the first three lines, create a new TXT record for the last line, and paste the values exactly as shown.

📌 Why this matters

Emails going to spam is one of the most damaging problems for email deliverability, and domain authentication is the single most effective fix. By setting up Sender Authentication in SendGrid — including proper CNAME and TXT DNS records — senders establish verified domain identity that inbox providers like Gmail and Outlook trust. This reduces spam folder placement, protects sender reputation, and ensures that transactional and marketing emails reliably reach recipients' inboxes. For any business relying on email communication, completing this setup in SendGrid is a critical step toward consistent, high-deliverability email performance.

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