Information for: DEVELOPERS   PARTNERS

Platform Email


EOL notice! Legacy Email support will reach end-of-life on February 1, 2022. The Platform Email service documented below replaces the Legacy Email service.

For more information on the Legacy Email offering, see About email in Cloud Platform applications.

For more information on the Legacy Email EOL, see Legacy Email Retirement FAQ.


Acquia Cloud Platform provides Platform Email Service as a robust transactional email sending solution. This service is an advancement to the existing email service, which has certain limitations causing email outages and maintenance overhead. Platform Email Service overcomes those limitations by leveraging the capabilities of Amazon Simple Email Service (Amazon SES). This service provides credibility to emails, prevents email spoofing, and enhances the deliverability of emails by implementing DMARC on the SPF and DKIM sender authentication frameworks. Moreover, this service will be FedRAMP, ISO, and PCI compliant in near future to offer additional security enhancements. For highly-targeted reputation management, enhanced security, and better deliverability, this service requires you to register a specific domain with proof of ownership.

Platform Email Service offers the following enhancements over the existing email service:

  • Enhanced security
    It provides enhanced security through email authentication standards, such as Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM), and Domain-based Message Authentication, Reporting, and Conformance (DMARC). For an email sending solution, these standards are crucial as they provide credibility to emails, prevent email spoofing, and enhance the deliverability of emails.
  • Improved email reputation
    It does not use a shared email reputation because of which spams, complaints, and bounces of specific customers don’t cause email outages for all customers.
  • Encryption
    It supports end-to-end encryption of emails.
  • Robustness
    It is highly robust and secure because its usage is not shared.


Acquia Cloud Platform supports limited outgoing emails, such as Drupal registration confirmation emails and node subscription emails, in accordance with the Acceptable Use Policy. Therefore, you cannot use it to send mass emails such as marketing messages or newsletters. This service is provided as a courtesy and has no uptime or service level agreements associated with it. For sending mass emails, you must instead use external email services or applications with a specified service level for email. For more information, see Using a third-party email service.

Process flow

The following diagram depicts the high-level process flow of the Platform Email service:

Platform Email Process Flow

The following table describes the steps mentioned in the diagram:

Step Description
1 Customer’s user with appropriate role or permissions configures an email sending domain through the Platform Email page in the Acquia Cloud Platform user interface.
2 The Platform Email page displays the SPF, DKIM, and TXT records (DNS records) for the domain. It also shows a notification that the user must add the DNS records to the customer’s DNS provider for verification of domain ownership.
3 The user copies the DNS records from the Platform Email page.
4 The user adds the DNS records to the customer’s DNS provider.

Platform Email Service attempts to verify the DNS records with the DNS provider at regular intervals. Depending on the verification result, Platform Email updates the domain status.

After the domain is verified, the user associates the domain to an application within the subscription.


The user logs on to the Drupal website and configures the email address to be used for sending emails.

After the email address is configured, the user enables the environment to send emails through Platform Email Service.

7 Emails are sent from the Drupal website to recipients through Amazon SES.