DKIM (DomainKeys Identified Mail) and SPF (Sender Policy Framework) are essential for sending emails because they enhance email authentication and help ensure email deliverability. Here's why they are necessary:

Improves Email Deliverability

• Emails authenticated with DKIM and SPF are more likely to land in the recipient's inbox rather than being flagged as spam by email providers.

Builds Trust with Recipients

• Ensuring that your emails are authenticated helps establish your domain's credibility, making recipients more likely to trust and engage with your messages.

Supports DMARC Policies

• Both DKIM and SPF are integral to implementing DMARC (Domain-based Message Authentication, Reporting, and Conformance), which provides an additional layer of protection against email fraud.

Reduces Email Rejections

• Without DKIM and SPF, recipient servers may reject emails outright, especially if the domain lacks proper authentication records.

Mandatory for Reputable Email Services

• Many email providers and services require DKIM and SPF records to verify the sender's identity and maintain a strong sending reputation.

By setting up DKIM and SPF, you not only protect your domain but also increase the chances of your emails reaching their intended recipients.