Hi,We are using "Sign in with Apple" to onboard users to our system. We need to send instructions to the user using the email provided at signup. We use Mandrill in the backend to send emails. I have configured the sender email in "Individual Email Addresses" under "Certificates, Identifiers & Profiles" in developer account (& it shows a green check mark). The emails sent to private relay addresses (e.g. xxxxxprm23@privaterelay.appleid.com) bounces.I have verified another email using gmail & it works fine.Am I missing some settings?-------------Bounce message from Mandrill-----------------------------------Received: from mail178-28.suw51.mandrillapp.com (unknown [198.2.178.28])by relay-3.us-west-2.relay-prod (Postfix) with ESMTPS id C5BCA20EF5for <bounce-md_31096458.5d52843d.v1-61f4bb207bb443e7a3d9e4482eb7beb3@mandrillapp.com>; Tue, 13 Aug 2019 09:34:54 +0000 (UTC)Date: Tue, 13 Aug 2019 09:34:54 +0000From: postmaster@mail178-28.suw51.mandrillapp.comSubject: Delivery reportTo: bounce-md_31096458.5d52843d.v1-61f4bb207bb443e7a3d9e4482eb7beb3@mandrillapp.comMIME-Version: 1.0Content-Type: multipart/report; report-type=delivery-status; boundary="report5D52843E@mail178-28.suw51.mandrillapp.com"--report5D52843E@mail178-28.suw51.mandrillapp.comContent-Type: text/plainHello, this is the mail server on mail178-28.suw51.mandrillapp.com.I am sending you this message to inform you on the delivery status of amessage you previously sent. Immediately below you will find a list ofthe affected recipients; also attached is a Delivery Status Notification(DSN) report in standard format, as well as the headers of the originalmessage. <xxxxxprm23@privaterelay.appleid.com> delivery failed; will not continue trying--report5D52843E@mail178-28.suw51.mandrillapp.comContent-Type: message/delivery-statusReporting-MTA: dns;mail178-28.suw51.mandrillapp.comX-PowerMTA-VirtualMTA: mail178-28.suw51.mandrillapp.comReceived-From-MTA: dns;pmta05.mandrill.prod.suw01.rsglab.com (127.0.0.1)Arrival-Date: Tue, 13 Aug 2019 09:34:53 +0000Final-Recipient: rfc822;xxxxxprm23@privaterelay.appleid.comAction: failedStatus: 5.1.1 (bad destination mailbox address)Remote-MTA: dns;smtp4.privaterelay.appleid.com (17.57.8.145)Diagnostic-Code: smtp;550 5.1.1 bad mailbox nameX-PowerMTA-BounceCategory: bad-mailbox--report5D52843E@mail178-28.suw51.mandrillapp.comContent-Type: text/rfc822-headersDKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; s=mandrill; d=oya.world;h=From:Subject:List-Unsubscribe:To:Message-Id:Date:MIME-Version:Content-Type; i=welcome@oya.world;bh=Ops6f/AgWvI27tyFlbRhsYYWTqOPpMm/99FtJ/vbAkU=;b=ZyT9AzPQ4TJM+s0zXmp9FZyQOLWH2g8FF424o84vD9z3gaNgBL8UuTt9ZLVqDUvpNT4Zgl1lx2Zt s1l++42QqfiKzNs/k+EEkhukc4wO6aO0N/ETiVx88HPDO5L3sHnaFh7AR/7ibvcepdgi/wLu1Oi2 kwRyG1yYZeoKbgMxFQo=Received: from pmta05.mandrill.prod.suw01.rsglab.com (127.0.0.1) by mail178-28.suw51.mandrillapp.com id haa23s22s10h for <xxxxxprm23@privaterelay.appleid.com>; Tue, 13 Aug 2019 09:34:53 +0000 (envelope-from <bounce-md_31096458.5d52843d.v1-61f4bb207bb443e7a3d9e4482eb7beb3@mandrillapp.com>)DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mandrillapp.com;i=@mandrillapp.com; q=dns/txt; s=mandrill; t=1565688893; h=From :Subject : List-Unsubscribe : To : Message-Id : Date : MIME-Version :Content-Type : From : Subject : Date : X-Mandrill-User :List-Unsubscribe; bh=Ops6f/AgWvI27tyFlbRhsYYWTqOPpMm/99FtJ/vbAkU=;b=j7KbsqOEd5ne5OxhO1V1d3jrClWzwhaQ+i6PVGLzgM7MoOYiSBRhK5PCmPIJsxSiigqDhxRlVQBLmcKVo0f/m+/qtxV0cU0oODP4YsZnc8b4uDhxjSKQBG0kUiFg5FTagNWmqKAAfdVEmLFVL780ppE+A+W+FoMVMEW3Bvk7H74=From: "[TEST] OYA" <welcome@oya.world>Subject: [TEST] Download OYA Data-only eSIM using this QR codeReturn-Path: <bounce-md_31096458.5d52843d.v1-61f4bb207bb443e7a3d9e4482eb7beb3@mandrillapp.com>List-Unsubscribe: <mailto:unsubscribe-md_31096458.5d52843d.v1-61f4bb207bb443e7a3d9e4482eb7beb3@mailin1.us2.mcsv.net?subject=unsub>To: <xxxxxprm23@privaterelay.appleid.com>X-Report-Abuse: Please forward a copy of this message, including all headers, to abuse@mandrill.comX-Report-Abuse: You can also report abuse here: http://mandrillapp.com/contact/abuse?id=31096458.61f4bb207bb443e7a3d9e4482eb7beb3X-Mandrill-User: md_31096458Message-Id: <31096458.20190813093453.5d52843d50edc9.32051422@mail178-28.suw51.mandrillapp.com>Date: Tue, 13 Aug 2019 09:34:53 +0000MIME-Version: 1.0Content-Type: multipart/alternative; boundary="_av-aFtqyPtvVIKqh7D4k70iuw"--report5D52843E@mail178-28.suw51.mandrillapp.com--