Email Address Format

Stax-managed AWS accounts require email addresses. It is important to ensure that these addresses adhere to both AWS and Stax requirements.

If your AWS account ownership model is a model with any customer-owned AWS accounts, Stax requires an email address template to be specified as part of onboarding. The email address template must provide room for a Stax-generated account identifier in the format of a UUID.

The recommended email address format is aws+${Stax::AccountId}@example.com.

Placeholders

The following placeholders can be used as part of the email address template:

Considerations

When determining the template for your organization, consider the following limitations:

• AWS limits the maximum length of these email addresses to 64 characters
• The UUID generated by Stax has a length of 36 characters, leaving 28 characters for other parts of the email address
• The UUID generated by Stax will not be known ahead of time, so using something like the convention of SMTP sub-addressing supported by many vendors is encouraged (Microsoft 365, Gmail)
• AWS account number is unable to be used in the email address template because the email address must exist before the account can be created

See also

• AWS Account API reference
• Use Microsoft 365 with Stax