From: Microsoft Outlook <MicrosoftExchange329e7 lec88ae46 | Sbbc36ab6ce4 1 109e(@idoj365.onmicrosoft.com> Date: Wed, 14 Aug 2019 16:40:43 +0000 Embedded: unnamed loi Your message couldn't be delivered to multiple recipients. The recipients weren't found at bop.gov. RDonaleski Office 365 Recipients Action ed Recipients Unknown To address Couldn't deliver to the following recipients: How to Fix It The address may be misspelled or may not exist. Try one or more of the following: * Send the message again following these steps: In Outlook, open this non-delivery report (NDR) and choose Send Again from the Report ribbon. In Outlook on the web, select this NDR, then select the link "To send this message again, click here." Then delete and retype the entire recipient address. If prompted with an Auto- Complete List suggestion don't select it. After typing the complete address, click Send. « Contact the recipient (by phone, for example) to check that the address exists and is correct. « The recipient may have set up email forwarding to an incorrect address. Ask them to check that any forwarding they've set up is working correctly. © Clear the recipient Auto-Complete List in Outlook or Outlook on the web by following the steps in this article: Fix email delivery issues for error code 5.1.10 in Office 365, and then send the message again. Retype the entire recipient address before selecting Send. If the problem continues, forward this message to your email admin. If you're an email admin, refer to the More Info for Email Admins section below. Was this helpful? Send feedback to Microsoft More Info for Email Admins Status code: 550 5.1.10 This error occurs because the sender sent a message to an email address hosted by Office 365 but the address is incorrect or doesn't exist at the destination domain. The error is reported by the recipient domain's email server, but most often it must be fixed by the person who sent the message. If the steps in the How to Fix It section above don't fix the problem, and you're the email admin for the recipient, try one or more of the following: The email address exists and is correct - Confirm that the recipient address exists, is correct, and is accepting messages. Synchronize your directories - If you have a hybrid environment and are using directory synchronization make sure the recipient's email address is synced correctly in both Office 365 and in your on-premises directory. Errant forwarding rule - Check for forwarding rules that aren't behaving as expected. EFTA00032370

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Forwarding can be set up by an admin via mail flow rules or mailbox forwarding address ent via the Inbox Rules feature. assigned to them. The recipi assign a license Mail flow settings and MX records are not correct - Misconfigured m v or MX e settings to make h Created Date: Sender Address: Recipient Address: Subject: Error Details Reported error 10 RESOLVER ADR Recipier DSN generated by: BN3P110MB0292 NAMP110.PROD Message Hops HOP TIME (UTC FROM TO Original Message Headers WITH RELAY TIME EFTA00032371

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