Add section for email records with examples

Author: RebeccaTamachiro

src/content/docs/dns/manage-dns-records/how-to/initial-setup.mdx

@@ -5,7 +5,7 @@ sidebar:
   order: 1
 ---
 
-import { GlossaryTooltip, GlossaryDefinition, Render, TabItem, Tabs, Details, Example,  } from "~/components";
+import { GlossaryTooltip, GlossaryDefinition, Render, TabItem, Tabs, Details, Example } from "~/components";
 
 As explained in the [overview page](/dns/manage-dns-records/), DNS records are essential, as they are used to make your website or application available to visitors and other web services.
 
@@ -75,4 +75,41 @@ If you are using other providers, look for their guidance on how to connect doma
 
 Most subdomains serve a specific purpose within the overall context of your website. For example, `blog.example.com` might be your blog, `support.example.com` could be your customer help portal, and `store.example.com` would be your e-commerce site.
 
-Even if you do not require specific subdomains, you might want to set up at least the `www` subdomain. It will usually point to the same content as what you have on the apex domain (`example.com`) or use a [redirect](/fundamentals/setup/manage-domains/manage-subdomains/#redirect-a-subdomain-to-the-apex-domain). Having a DNS record on the `www` subdomain helps guarantee that a visitor who types `www.` in front of your domain address on their browser can still find your website or application.
+Even if you do not require specific subdomains, you might want to set up at least the `www` subdomain. It will usually point to the same content as what you have on the apex domain (`example.com`) or use a [redirect](/fundamentals/setup/manage-domains/manage-subdomains/#redirect-a-subdomain-to-the-apex-domain). Having a DNS record on the `www` subdomain helps guarantee that a visitor who types `www.` in front of your domain address on their browser can still find your website or application.
+
+## Email records
+
+Depending on your business needs, you can configure DNS records so that you can:
+
+- use your domain to receive emails
+- receive and send emails from your domain
+- prevent others from sending emails on your behalf (spoofing)
+
+When you send and receive emails, you can expect to find mail exchange (MX) records and address records (A or AAAA) pointing to IP addresses specified by your SMTP provider.
+
+<Details header="Example">
+<Example>
+DNS management for **example.com**:
+
+| Type | Name    | Content      | Proxy status | TTL    |
+| ---- | ------- | ------------ | ------------ | ------ |
+| A    | `mail`  | `192.0.2.1`  | DNS Only      | Auto   |
+| MX    | `example.com`  | `john.mx.example-server.test [1]`  | DNS Only      | Auto   |
+
+</Example>
+</ Details>
+
+For security records that prevent domain spoofing, you can expect to find TXT records for Sender Policy Framework [(SPF)](https://www.cloudflare.com/learning/dns/dns-records/dns-spf-record/), DomainKeys Identified Mail [(DKIM)](https://www.cloudflare.com/learning/dns/dns-records/dns-dkim-record/), and Domain-based Message Authentication Reporting and Conformance [(DMARC)](https://www.cloudflare.com/learning/dns/dns-records/dns-dmarc-record/).
+
+<Details header="Example">
+<Example>
+DNS management for **example.com**:
+
+| Type | Name    | Content      | Proxy status | TTL    |
+| ---- | ------- | ------------ | ------------ | ------ |
+| TXT    | `_dmarc`  | `"v=DMARC1; p=reject; sp=...`  | DNS Only      | Auto   |
+| TXT    | `*._domainkey`  | `"v=DKIM1; p="`  | DNS Only      | Auto   |
+| TXT    | `example.com`  | `"v=spf1 -all"`  | DNS Only      | Auto   |
+
+</Example>
+</ Details>