When the mail extension invoke allowMessageSendForSession func, the error prompt did not show the error description. What am I missing? Below is the code:     enum ComposeSessionError: LocalizedError {         case invalidRecipientDomain                  var errorDescription: String? {             switch self {             case .invalidRecipientDomain:                 return "example.com is not a valid recipient domain"             }         }     }          func allowMessageSendForSession(_ session: MEComposeSession) async throws {         // Before Mail sends a message, your extension can validate the         // contents of the compose session. If the message isn't ready to be         // sent, throw an error.         throw ComposeSessionError.invalidRecipientDomain     }

Hello, When my system DNS is set to DoH/DoT enabled DNS server i.e. 8.8.8.8 or 1.1.1.1, the NEDNSProxyProvider.handleNewFlow will not get called. What am I missing or is it the limitation? Also, the NEDNSProxyProvider.systemDNSSettings always return nil. PS: The network extension is running on macOS 13.3.1 (a)

I would like to enforce to encrypt a certain type of email. With MEMessageSecurityHandler, AFAIK, there is no way to enforce encryption as the encode method will be called when sender enable the encryption.