When a group is first created in Exchange Online, whether it is created manually or by a cutover/staged migration, the setting defaults to Off. Try this fix: Wait a short time and try to send your message again. RunspaceId : 93d51ae8-6e27-4b67-b3ed-0128982220f1, IsInternal : False, TargetDeliveryDomain : False, ByteEncoderTypeFor7BitCharsets : Undefined, CharacterSet : iso-8859-1, NonMimeCharacterSet : iso-8859-1, AllowedOOFType : ExternalLegacy, AutoReplyEnabled : True, AutoForwardEnabled : True, DeliveryReportEnabled : True, NDREnabled : True, MeetingForwardNotificationEnabled : False, ContentType : MimeHtmlText, DisplaySenderName : True, PreferredInternetCodePageForShiftJis : Undefined, LineWrapSize : Unlimited, TrustedMailOutboundEnabled : False, TrustedMailInboundEnabled : False, UseSimpleDisplayName : False, NDRDiagnosticInfoEnabled : True, MessageCountThreshold : 2147483647, ExchangeVersion : 0.0 (6.5.6500.0), Name : Default, DistinguishedName : CN=Default,CN=Internet Message Formats,CN=Global, Exchange,CN=Services,CN=Configuration,DC=xxxx,DC=lu, Identity : Default, Guid : 7aa21c37-dc3c-47c6-bd2e-a2ffd1de0863, ObjectCategory : xxx.lu/Configuration/Schema/ms-Exch-Domain-Content-Config, ObjectClass : {top, msExchDomainContentConfig}, WhenChanged : 30/08/2015 11:08:01, WhenCreated : 21/11/2003 12:19:00, WhenChangedUTC : 30/08/2015 09:08:01, WhenCreatedUTC : 21/11/2003 11:19:00, Id : Default, OriginatingServer : SVR-DC20.xxxx.lu, IsValid : True, ObjectState : Unchanged. Generally these issues occurs while using trail tenant to perform this send email activity using Graph API. in Outlook and re-type the email address manually with no success. If there exist such issue, it will effect all mailboxes rather than only on mailbox. A problem occurred while delivering this message to this email address. I hope the members are added. Remove any old/invalid email addresses from the group. Good times! Try this fix: This typeof errorshould fix itself over time. Please visit our Privacy Statement for additional information. X-MS-Exchange-Transport-Forked: True I have noticed a very critical issue when sending emails from a distribution group -universal on our Exchange 2013. X-Microsoft-Antispam-Message-Info: 368YntzXjYBlROPwvKLcXthTAXAA9KBuXRDWX3O6J34/yxtUdz+czuZe8BvCxX/YPqNbvzplv79Y8jvKDbNgZLzqSZwxAZ0qyMyw8xXmLVoKCbxo9KFCwBss5UGDBrC/lSYBLEvR/zX28nTQm19VTw== The recipient's mailbox is full and can't accept messages now. can see that its my local Exchange server that return the error and not any another server. Please try to resend the message later. 2023 Quest Software Inc. All Rights Reserved. Sharing best practices for building any app with .NET. ), I have to setup in the registry forDLUnsuppressedMessageTypes. 11. Can you tell me where I can check the Email information whether I will check in the Exchange admin center or anywhere else? The recipient's mailbox is full and can't accept messages now. Or please empty the deleted items. To: