[Email Security] Inline deployment docs

src/content/docs/cloudflare-one/email-security/setup/pre-delivery-deployment/egress-ips.mdx

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+---
+title: Egress IPs
+pcx_content_type: reference
+sidebar:
+  order: 4
+---
+
+When you set up Email Security using an [inline deployment](/cloudflare-one/email-security/setup/pre-delivery-deployment/inline-deployment/), you need to tell your existing email providers to accept messages coming from Email Security's egress IP addresses.
+
+Refer to this page for reference on what IP subnet mask ranges to use.
+
+:::caution[Additional information for O365]
+
+Office 365 does not support IPv6 addresses nor the following IPv4 subnet mask ranges:
+
+* `104.30.32.0/19`
+* `134.195.26.0/23`
+
+If you use Office 365, you will have to use the broken down `/24` subnet mask IP addresses. Refer to [Office 365 `/24` addresses](#office-365-24-addresses) for a list of supported IPv4 addresses.
+
+
+:::
+
+## United States
+
+For customers in the United States, enter the following IP addresses:
+
+### IPv4
+
+```txt
+52.11.209.211
+52.89.255.11
+52.0.67.109
+54.173.50.115
+104.30.32.0/19
+158.51.64.0/26
+158.51.65.0/26
+134.195.26.0/23
+```
+
+### IPv6
+
+```txt
+2405:8100:c400::/38
+```
+
+## Europe
+
+For customers in Europe, add all our US IP addresses. Additionally, you need to add the following IP addresses for our European data centers:
+
+```txt
+52.58.35.43
+35.157.195.63
+```
+
+## India
+
+For customers in India, add all our US IP addresses.
+
+## Australia / New Zealand
+
+For customers in Australia and New Zealand, add all our US IP addresses.
+
+## Office 365 `/24` addresses
+
+Use these IPv4 addresses for Office 365, instead of the `/19` and `/23` subnets:
+
+```txt
+104.30.32.0/24
+104.30.33.0/24
+104.30.34.0/24
+104.30.35.0/24
+104.30.36.0/24
+104.30.37.0/24
+104.30.38.0/24
+104.30.39.0/24
+104.30.40.0/24
+104.30.41.0/24
+104.30.42.0/24
+104.30.43.0/24
+104.30.44.0/24
+104.30.45.0/24
+104.30.46.0/24
+104.30.47.0/24
+104.30.48.0/24
+104.30.49.0/24
+104.30.50.0/24
+104.30.51.0/24
+104.30.52.0/24
+104.30.53.0/24
+104.30.54.0/24
+104.30.55.0/24
+104.30.56.0/24
+104.30.57.0/24
+104.30.58.0/24
+104.30.59.0/24
+104.30.60.0/24
+104.30.61.0/24
+104.30.62.0/24
+104.30.63.0/24
+134.195.26.0/24
+134.195.27.0/24
+```

src/content/docs/cloudflare-one/email-security/setup/pre-delivery-deployment/index.mdx

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+---
+title: Pre-delivery deployment
+pcx_content_type: navigation
+sidebar:
+  order: 1
+  group:
+    hideIndex: true
+---
+
+import { DirectoryListing } from "~/components"
+
+
+
+<DirectoryListing />

src/content/docs/cloudflare-one/email-security/setup/pre-delivery-deployment/inline-deployment-setup.mdx

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+---
+title: Set up inline deployment
+pcx_content_type: concept
+sidebar:
+  order: 3
+---
+
+To set up MX Inline:
+
+1. Log in to [Zero Trust](https://one.dash.cloudflare.com/).
+2. Select **Email Security**.
+3. Select **Monitoring**. If you are a first time user, select **Contact sales**. Otherwise, select **Set up**.
+4. Select **MX/Inline**.
+5. To start the MX/Inline configuration, you will need to have completed the prerequisite setup on your email provider's platform. Once you have completed this step, select **I confirm that I have completed all the necessary requirements**. Then, select **Start configuration**.
+
+If you have verified zones on Cloudflare, continue with the following steps:
+
+1. **Connect a domain**: Select your domain. Then, select **Continue**.
+2. **Select position**: This step allows you to choose where Email Security fits into your mail flow and configure position settings:
+    - **Select position**: Choose between:
+        - **Sit first (hop count = 1)**: Email Security sits at the first hop. There are no other email scanners or services between the Internet and Cloudflare.
+        - **Sit in the middle (hop count > 1)**: Email Security sits in the middle of your email processing. There are other email scanners or email services in between.
+    - **Position settings**: Refine how Email Security receives and forwards emails:
+        - **Forwarding address**: This is your mail flow next hop after Email Security. This value is auto-filled, but you can still change it.
+        - **Outbound TLS**: Choose between:
+            1. **Forward all messages over TLS** (recommended).
+            2. **Forward all messages using opportunistic TLS**.
+    - Select **Continue**.
+3. (**Optional**, select **Skip for now** to skip this step) **Configure quarantine policy**: Select dispositions to automatically prevent certain types of incoming messages from reaching a recipient's inbox. 
+4. (Optional ) **Update MX records**: 
+    - Email Security can automatically update MX records for domains that proxy traffic through Cloudflare. Under your mail processing location, select your mail processing location.
+    - You can also choose to allow Cloudflare to update MX records by selecting **I confirm that I allow Cloudflare to update to the new MX records**.
+    - Select **Continue**.
+5. **Review details**: Review your domain, then select **Go to domains**.
+
+## Users who do not have domains with Cloudflare
+
+If you do not have domains with Cloudflare, the dashboard will display two options:
+
+- Add a domain to Cloudflare.
+- Enter domain manually.
+
+### Add a domain to Cloudflare
+
+Selecting **Add a domain to Cloudflare** will redirect you to a new page where you will connect your domain to Cloudflare. Once you have entered an existing domain, select **Continue**.
+
+Then, follow the steps to [Set up MX/Inline](/cloudflare-one/email-security/setup/pre-delivery-deployment/inline-deployment-setup/).
+
+### Enter domain manually
+
+1. **Add domains**: Manually enter domain names.
+2. **Review all domains**: Review all your domains, then select **Continue**.
+3. **Verify your domains**: It may take up to 24 hours for your domains to be verified. Select **Done**.
+4. Once your domains have been verified, the dashboard will display a message like this: **You have verified domains ready to connect to Email Security**. This means that you can now set up Email Security via MX/Inline. 
+5. Select **Set up**, then select **MX/Inline**.
+6. Follow the steps to [Set up MX/Inline](/cloudflare-one/email-security/setup/pre-delivery-deployment/inline-deployment-setup/).

src/content/docs/cloudflare-one/email-security/setup/pre-delivery-deployment/inline-deployment.mdx

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+---
+title: Inline deployment
+pcx_content_type: concept
+sidebar:
+  order: 2
+---
+
+With pre-delivery deployment, also known as Inline deployment, Email Security evaluates email messages before they reach a user's inbox.
+
+Email Security becomes a hop in the SMTP processing chain and physically interacts with incoming email messages. Based on your policies, various messages are blocked before reaching the inbox.
+
+When you choose an inline deployment, you get the following benefits:
+
+- Messages are processed and physically blocked before arriving in a user's mailbox.
+- Your deployment is simpler, because any complex processing can happen downstream and without modification.
+- Email Security can modify delivered messages, adding subject or body mark-ups.
+- Email Security can offer high availability and adaptive message pooling.
+- You can set up advanced handling downstream for non-quarantined messages with added X-headers.
+
+![Inline deployment diagram](~/assets/images/email-security/deployment/inline-setup/CF_A1S_Deployment_Inline_Diagrams.png)

src/content/docs/cloudflare-one/email-security/setup/pre-delivery-deployment/prerequisites/cisco-email-security-mx.mdx

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+---
+title: Cisco - Email Security as MX Record
+pcx_content_type: integration-guide
+sidebar:
+  order: 5
+---
+
+import { Render } from "~/components"
+
+![A schematic showing where Email Security sits in the life cycle of an email received](src/assets/email-security/Cisco_to_Email_Security_MX_Inline.png)
+
+In this tutorial, you will learn how to configure Cisco IronPort with Email Security as MX record. 
+
+<Render file="deployment/mx-deployment-prerequisites" product="email-security"/>
+
+## 1. Add a Sender Group for Email Security Email Protection IPs
+
+To add a new Sender Group:
+
+1. Go to **Mail Policies** > **HAT Overview**.
+
+2. Select **Add Sender Group**.
+
+3. Configure the new Sender Group as follows:
+   - **Name**: `Email Security`.
+   - **Order**: Order above the existing **WHITELIST** sender group.
+   - **Comment**: `Email Security Email Protection egress IP Addresses`.
+   - **Policy**: `TRUSTED` (by default, spam detection is disabled for this mail flow policy).
+   - **SBRS**: Leave blank.
+   - **DNS Lists**: Leave blank.
+   - **Connecting Host DNS Verification**: Leave all options unchecked.
+
+4. Select **Submit and Add Senders** and add the IP addresses mentioned in [Egress IPs](/cloudflare-one/email-security/setup/pre-delivery-deployment/egress-ips/).
+
+## 2. Configure Incoming Relays
+
+You need to configure the Incoming Relays section to tell IronPort to ignore upstream hops, since all the connections are now coming from Email Security. This step is needed so the IronPort can retrieve the original IPs to calculate IP reputation. IronPort also uses this information in the Anti-Spam (IPAS) scoring of messages.
+
+1. To enable the Incoming Relays Feature, select **Network** > **Incoming Relays**.
+2. Select **Enable** and commit your changes.
+3. Now, you will have to add an Incoming Relay. Select **Network** > **Incoming Relays**.
+4. Select **Add Relay** and give your relay a name.
+5. Enter the IP address of the MTA, MX, or other machine that connects to the email gateway to relay incoming messages. You can use IPv4 or IPv6 addresses.
+6. Specify the `Received:` header that will identify the IP address of the original external sender.
+7. Commit your changes.
+
+## 3. Disable SPF checks
+
+Make sure you disable Sender Policy Framework (SPF) checks in IronPort. Because Email Security is acting as the MX record, if you do not disable SPF checks, IronPort will block emails due to an SPF failure.
+
+Refer to [Cisco's documentation](https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/117973-faq-esa-00.html) for more information on how to disable SPF checks.
+
+## Next steps
+
+Now that you have completed the prerequisite steps, you can set up [MX/Inline](/cloudflare-one/email-security/setup/pre-delivery-deployment/inline-deployment-setup/) on the Cloudflare dashboard.

src/content/docs/cloudflare-one/email-security/setup/pre-delivery-deployment/prerequisites/cisco-mx.mdx

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+---
+title: Cisco - Cisco as MX Record
+pcx_content_type: integration-guide
+sidebar:
+  order: 6
+---
+
+import { GlossaryTooltip, Render } from "~/components"
+
+![A schematic showing where Email Security is in the life cycle of an email received](src/assets/email-security/Cisco_to_Cisco_MX_Inline.png)
+
+In this tutorial, you will learn how to configure Email Security with Cisco as MX record. 
+
+## 1. Add a Sender Group for Email Security Email Protection IPs
+
+To add a new Sender Group:
+
+1. Go to **Mail Policies** > **HAT Overview**.
+
+2. Select the **Add Sender Group** button.
+
+3. Configure the new Sender Group as follows:
+   - **Name**: `Email Security`.
+   - **Order**: Order above the existing **WHITELIST** sender group.
+   - **Comment**: `Email Security Email Protection egress IP Addresses`.
+   - **Policy**: `TRUSTED` (by default, spam detection is disabled for this mail flow policy).
+   - **SBRS**: Leave blank.
+   - **DNS Lists**: Leave blank.
+   - **Connecting Host DNS Verification**: Leave all options unchecked.
+
+4. Select **Submit and Add Senders**, and add the IP addresses mentioned in [Egress IPs](/cloudflare-one/email-security/setup/pre-delivery-deployment/egress-ips/). If you need to process emails in the EU or India regions for compliance purposes, add those IP addresses as well.
+
+## 2. Add <GlossaryTooltip term="SMTP">SMTP</GlossaryTooltip> route for the Email Security Email Protection Hosts
+
+To add a new SMTP Route:
+
+1. Go to **Network** > **SMTP Routes**.
+
+2. Select **Add Route**.
+
+3. Configure the new SMTP Route as follows:
+   * **Receiving Domain**: `a1s.mailstream`
+   * In **Destination Hosts**, select **Add Row**, and add the Email Security MX hosts. Refer to the [Geographic locations](#5-geographic-locations) table for more information on which MX hosts to use.
+
+## 3. Create Incoming Content Filters
+
+To manage the mail flow between Email Security and Cisco ESA, you need two filters:
+
+* One to direct all incoming messages to Email Security.
+* One to recognize messages coming back from Email Security to route for normal delivery.
+
+### Incoming Content Filter - To Email Security
+
+To create a new Content Filter:
+
+1. Go to **Mail Policies** > **Incoming Content Filters**.
+
+2. Select **Add Filter** to create a new filter.
+
+3. Configure the new Incoming Content Filter as follows:
+   - **Name**: `ESA_to_A1S`
+   - **Description**: `Redirect messages to Email Security for anti-phishing inspection`
+   - **Order**: This will depend on your other filters.
+   - **Condition**: No conditions.
+   - **Actions**:
+     - For **Action** select **Send to Alternate Destination Host**.
+     - For **Mail Host** input `a1s.mailstream` (the SMTP route configured in step 2).
+
+### Incoming Content Filter - From Email Security
+
+To create a new Content Filter:
+
+1. Go to **Mail Policies** > **Incoming Content Filters**.
+
+2. Select the **Add Filter** button to create a new filter.
+
+3. Configure the new Incoming Content Filter as follows:
+   - **Name**: `A1S_to_ESA`
+   - **Description**: `Email Security inspected messages for final delivery`
+   - **Order**: This filter must come before the previously created filter.
+   - **Conditions**: Add conditions of type **Remote IP/Hostname** with all the IP addresses mentioned in [Egress IPs](/cloudflare-one/email-security/setup/pre-delivery-deployment/egress-ips/). For example:
+     Order | Condition            | Rule
+     \----- | -------------------- | ---
+     `1`   | `Remote IP/Hostname` | `52.11.209.211`
+     `2`   | `Remote IP/Hostname` | `52.89.255.11`
+     `3`   | `Remote IP/Hostname` | `52.0.67.109`
+     `4`   | `Remote IP/Hostname` | `54.173.50.115`
+     `5`   | `Remote IP/Hostname` | `104.30.32.0/19`
+     `6`   | `Remote IP/Hostname` | `158.51.64.0/26`
+     `7`   | `Remote IP/Hostname` | `158.51.65.0/26`
+   * Ensure that the *Apply rule:* dropdown is set to **If one or more conditions match**.
+   * **Actions**: Select **Add Action**, and add the following:
+     Order | Action          | Rule
+     \--- | -------------------- | ---
+     1   | `Skip Remaining Content Filters (Final Action)` | `skip-filters()`
+
+## 4. Add the Incoming Content Filter to the Inbound Policy table
+
+Assign the Incoming Content Filters created in [step 3](#3-create-incoming-content-filters) to your primary mail policy in the Incoming Mail Policy table. Then, commit your changes to activate the email redirection.
+
+## 5. Geographic locations
+
+<Render file="deployment/mx-geographic-locations" product="email-security"/>
+
+## Next steps
+
+Now that you have completed the prerequisite steps, you can set up [MX/Inline](/cloudflare-one/email-security/setup/pre-delivery-deployment/inline-deployment-setup/) on the Cloudflare dashboard.