This incident has been resolved.

Mailgun has implemented a fix and email validation for new admin accounts is now working. We will continue to monitor for any issues.

We are currently experiencing an issue where merchants are receiving errors when attempting to create new admin accounts. This is due to a service disruption with Mailgun, our third-party email verification partner. Our team is actively monitoring the situation, and we will provide updates here as soon as a resolution is reached. In the meantime, you can track the live status of the email verification service directly via the Mailgun Status Page here: https://status.mailgun.com/