Domains

Email Security works through a system of domain-based routing, where Cloudflare receives and evaluates incoming email from a domain.

Create a domain

To create a new domain in Email Security:

1. Log in to the Email Security dashboard ↗.

2. Go to Settings (the gear icon).

3. Go to Email Configuration > Domains & Routing > Domains.

4. Select New Domain.

5. Enter the following information:

   • Domain: The domain name receiving email traffic.
   • Configured As: Choose MX Records or specify a number of Hops (depending on your email architecture).
   • Forwarding To: Enter the hostname of your email provider.
   • IP Restrictions (optional): Restrict incoming traffic to the IP addresses of your mail servers.
   • Inbound TLS (only available for non-MX domains): Applies TLS to incoming traffic.
   • Outbound TLS: Choose between Forward all messages over TLS (recommended) or Forward all messages using opportunistic TLS.
   • Quarantine Policy: Choose the dispositions you want to send to Admin quarantine.

6. Select Publish Domain.

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Edit a domain

To edit an existing domain:

1. Log in to the Email Security dashboard ↗.
2. Go to Settings (the gear icon).
3. Go to Email Configuration > Domains & Routing > Domains.
4. On a specific domain, select … > Edit.
5. Make changes as needed.
6. Select Update Domain.

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Delete a domain

To delete a domain:

1. Log in to the Email Security dashboard ↗.
2. Go to Settings (the gear icon).
3. Go to Email Configuration > Domains & Routing > Domains.
4. On a specific domain, select … > Delete.