DNS lookup tools are essential for several reasons:
1. Email Deliverability: They help improve your email deliverability by ensuring that your domain is correctly configured. 2. Spam Prevention: These tools help prevent your emails from being marked as spam by verifying SPF, DKIM, and DMARC records. 3. Domain Verification: They verify that the domain you are sending emails from is legitimate and not associated with any suspicious activities. 4. Reputation Management: Consistently using DNS lookup tools helps maintain your domain's reputation, ensuring that your emails reach the inbox.