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How to Set Up SPF and DKIM for SendGrid

Domain Authentication shows providers (Google, Outlook, Yahoo!, etc.) that SendGrid has your permission to send emails on your domain’s behalf. Without proper authentication, SendGrid manages your mail stream, thus your recipients see the “via sendgrid.net” message in their mailbox.

Not-Authenticated-SendGrid-SPF-DKIM

To authorize SendGrid to send emails on your domain behalf, you should set up SPF and DKIM by pointing DNS entries from your DNS Provider (GoDaddy, Cloudflare, etc.) to Sendgrid. 

Setting up SPF and DKIM for SendGrid has 2 benefits 

  1. Your emails are more likely to reach the inbox instead of spambox
  2. Positive Impact on your Domain Reputation

To set up Domain Authentication, follow these steps:

  1. From your SendGrid portal, select Settings > Sender Authentication
  2. Click ‘Authenticate Domain’

Domain-Authentication-SendGrid-SPF-DKIM

3. Choose your DNS host

4. Enter your Domain

Domain-Authentication-SendGrid-SPF-DKIM

5. Add all the CNAME Records in your DNS host

SendGrid-SPF-DKIM-CNAME-Authentication

6. Example of added CNAME Records in Cloudflare DNS

CloudFlare-DNS-Sendgrid-SPF-DKIM-DMARC-Authentication

7. Once added, head back to your SendGrid UI and Verify

Congrats, your domain is authenticated now!

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