Hello, we have received an email with the subject: “New iOS 18 security changes may affect your account.” However, we are unable to send a reply to the provided email address. (Remote host said: 550 5.1.1 unknown or illegal alias) Could you please provide us with a valid address? Please Check, Thank you.

I have inquired through the Membership & Account > Update Account Information section. Thank you for your response!

The names for each Enterprise account were changed through the request. After creating new Certificates and Provisioning Profiles, the issue was resolved. Thank you for your help!