| Event Id | 8247 |
| Source | MSExchangeAL |
| Description | Address List Service is restarting this instance because policy group provider <name>:<name> returned a fatal error. <error code> |
| Event Information | According to Microsoft: CAUSE: This issue may occur if Domain Name System (DNS) name resolution between the Exchange server that is running the Recipient Update Service and the target domain controller that is in the remote domain is malfunctioning. Additionally, this issue may occur if the Short Name for the remote domain DC is not resolvable, even if the FQDN can be resolved (the Short Name is the NetBIOS name.) The Recipient Update Service may not be able to process users in the remote Windows domain. RESOLUTION: To resolve this issue, add an A record on the DNS server for the target domain controller that is in the remote domain. If the Recipient Update Service is set up as: Recipient Update Service (DOMAIN-A) Exchange Server: [EXCHANGESERVER] Domain Controller: [DOMAIN-B-DC] Add an A record on the DNS server for the DOMAIN-B-DC domain controller. Add the appropriate DNS suffixes for the child domain and make sure that the shortname can now be resolved. |
| Reference Links | Creating Exchange Recipient Update Service instances for remote domains |
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