How to Setup Domain on Cloudflare

Step-by-step guide to configure DNS records on Cloudflare for Aurora SendCloud. Learn to set up SPF, DKIM, MX, and DMARC records for optimal email delivery.

This guide walks you through adding a primary domain or subdomain in Cloudflare and configuring the DNS records that Aurora SendCloud requires.

Prerequisites:

  • Create a Cloudflare account at cloudflare.com if you don't already have one.
  • Add your domain or subdomain to your Aurora SendCloud account so the system generates the required DNS records.
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If you encounter errors while configuring DNS records in Cloudflare, contact Cloudflare's support team directly—they can identify and resolve DNS-related issues most quickly.

Choosing a Primary Domain or Subdomain

Before proceeding, decide whether to use your primary domain or a subdomain. We recommend reviewing the following Aurora SendCloud article for guidance:

How to choose a sending domain

Here's a quick overview of the two options:

  • Primary domains — for example, aurorasendcloud.com, mydnsexample.com, or google.com.
  • Subdomains — for example, relay.aurorasendcloud.com, sc.mydnsexample.com, or mail.google.com. Subdomains have an additional prefix before the primary domain.

In most cases, using a subdomain with Aurora SendCloud is the preferred option.

Adding a Domain

There are several ways to add a domain or subdomain to Cloudflare:

Method 1: Register a new domain or subdomain with Cloudflare.

Method 2: Transfer an existing domain or subdomain registration from another registrar to Cloudflare.

Method 3: Update the name servers of your existing domain at your registrar to point to Cloudflare instead of your current DNS provider.

This guide will focus on the first and third methods.

Registering a New Domain (Method 1)

If you need to create a new domain or subdomain and have it hosted on Cloudflare, follow these steps:

  1. Log in to your Cloudflare account.
  2. Click Domain Management (or a similar option).
  3. Click Add Domain.
  4. Enter the new domain you want to register.
  5. Follow the prompts to complete the registration process.

Using an Existing Domain (Method 3)

If you already have an existing domain or subdomain registered elsewhere but would like to manage your DNS with Cloudflare, follow these steps:

  1. Log in to your Cloudflare account.
  2. Add your existing domain to Cloudflare's DNS management.
  3. Note the NS (name server) records that Cloudflare displays—you'll need these in the next step.
  4. Update the name server records at your domain registrar to the values provided by Cloudflare.

Configuring the Domain

Once the domain has been added, you can access it by following these steps:

  1. Log in to your Cloudflare account.
  2. Go to Domain Management.
  3. Find the domain you want to configure and click Manage.
  4. Click Add Record to begin configuring DNS records.

Configuring SPF

SPF (Sender Policy Framework) records help protect your domain from email spoofing and reduce the likelihood that your emails are marked as spam.

Configuring an SPF Record for a Primary Domain

In your Cloudflare dashboard, enter the SPF record information displayed in the Aurora SendCloud dashboard.

FieldValue
Record TypeTXT
Host Record@
Record Valuev=spf1 include:sendcloud.org ~all (When activating multiple regions, please configure according to the actual requirements on the page)
TTL600 (seconds)
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If you already have an SPF record for this primary domain, insert include:sendcloud.org into the existing record. Place this text after v=spf1 and before ~all.

Configuring SPF Records for Subdomains

FieldValue
Record TypeTXT
Host RecordSubdomain Prefix (e.g., sc)
Record Valuev=spf1 include:sendcloud.org ~all (When activating multiple regions, please configure according to the actual requirements on the page)
TTL600 (seconds)

Configuring DKIM

DKIM (DomainKeys Identified Mail) records verify your domain's identity to prevent forged emails and reduce the likelihood of your emails being marked as spam.

Configuring a DKIM Record for a Primary Domain

FieldValue
Record TypeTXT
Host Recordsendcloud._domainkey (or the value assigned by Aurora SendCloud for your domain)
Record Valuek=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUA... (Please configure according to the actual requirements on the page)
TTL600 seconds
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Your DKIM host record may have a different value, such as default._domainkey or sc._domainkey. Always use the value assigned by Aurora SendCloud for your domain.

Configuring a DKIM Record for a Subdomain

FieldValue
Record TypeTXT
Host Recordsendcloud._domainkey.subdomain prefix (e.g., sendcloud._domainkey.sc)
Record Valuek=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUA... (Please configure as specified on the page)
TTL600 (seconds)

Configuring MX Records

MX (Mail Exchange) records specify where emails sent to your domain should be delivered.

Configuring an MX Record for the Primary Domain

FieldValue
Record TypeMX
Host Record@
Record Valuemx.sendcloud.org (Please configure as specified on the page when enabling multiple regions)
Priority10
TTL600 (seconds)
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Ensure that only Aurora SendCloud MX records are configured for your domain. Existing MX records from other email providers can cause unpredictable email delivery.

Configuring MX Records for a Subdomain

FieldValue
Record TypeMX
Host RecordSubdomain Prefix (e.g., sc)
Record Valuemx.sendcloud.org (When enabling multiple regions, please configure according to the instructions on the page)
Priority10
TTL600 (seconds)

Configuring DMARC

DMARC (Domain-based Message Authentication, Reporting & Conformance) is an email authentication protocol that protects your domain from spoofing and phishing attacks. It builds on SPF and DKIM to provide policy guidance for inbox providers.

Configuring a DMARC Record for the Primary Domain

FieldValue
Record TypeTXT
Host Record_dmarc
Record Valuev=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
TTL600 seconds

Parameter Descriptions:

  • v=DMARC1: Protocol version
  • p=none: Monitor mode (no enforcement)
  • p=quarantine: Quarantine mode (messages that fail verification will be sent to spam)
  • p=reject: Reject mode (messages that fail verification will be rejected)
  • rua: Email address for aggregated reports
  • ruf: Email address for forensic reports
  • fo=1: Generate a failure report if any authentication check fails

Configuring a DMARC Record for a Subdomain

FieldValue
Record TypeTXT
Host Record_dmarc.Subdomain prefix (e.g., _dmarc.sc)
Record Valuev=DMARC1; p=none; rua=mailto:[email protected]
TTL600 seconds

Domain Registrar and Name Server Records

If you recently migrated from another DNS hosting provider (or are currently migrating) and your Aurora SendCloud DNS records fail to verify, you may need to update your domain's name server records.

When switching DNS hosting providers, you must update the NS (name server) records at your registrar—the company where you purchased and registered your domain name.

If you need help identifying your domain's registrar, the ICANN WHOIS website can assist with this task.

Need Support?

Contact the Aurora SendCloud support team from the Support page in your Aurora SendCloud control panel.

Important Notes

  • The DNS record values in this guide are examples only. Refer to the actual values displayed in your Aurora SendCloud dashboard.
  • After configuration, DNS records may take several minutes to several hours to propagate globally.
  • Set the TTL to a low value (300–600 seconds) for faster verification. After successful verification, you can increase it as needed.