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Email Providers

Verify a MailPace transactional sending domain

Complete MailPace DKIM ownership verification and prepare domain-scoped credentials without treating the service as a bulk-marketing relay.

Reviewed

MailPace is a transactional-email service with HTTPS/SMTP sending and an inbound feature. Its introduction explicitly prohibits marketing emails, bulk newsletters, and other non-transactional content.

Establish sending readiness

  1. Add the application domain and publish the DKIM ownership records supplied by MailPace.
  2. Confirm verification before attempting a production send.
  3. Select the documented API/domain credential or SMTP setup appropriate to your client.
  4. Store the secret server-side and record which domain/environment it authorizes.

Optional SPF/DMARC configuration should follow MailPace’s current verification instructions and your domain policy. Do not create conflicting SPF records or change employee-mail MX merely to authenticate outbound sending.

Verify the supported workload

Send one approved transactional message and inspect provider/recipient evidence. MailPace’s documented recipient/batching limits are not permission to use a transactional connection for a newsletter.

If ownership remains pending, inspect the exact DKIM names at authoritative DNS rather than regenerating credentials. If receiving is also needed, follow the separate inbound subdomain setup in this section; sending verification alone does not point incoming mail at your app.

MailKite has independent verification/credential requirements. Do not treat a MailPace domain key as a generic token usable with another service’s SDK.