Mail flow not working after changing public IP address
June 4, 2018 | by iaur | posted as Exchange Onprem, Failure
Behavior: Inbound\outbound and internal and external mail flow issue
Reason: [{LED=451 4.7.0 Temporary server error. Please try again later. PRX2 };{MSG=};{FQDN=mail.faceresionem.xyz};{IP=13.67.95.11};{LRT=6/3/2018 7:35:31 PM}]. OutboundProxyTargetIP: 13.67.95.11. OutboundProxyTargetHostName: mail.faceresionem.xyz
Solution: configured set-frontendtransportservice with the same DNS settings as the transport service
Firstly, change the DNS look up settings of ECP to the new public IP address of the DNS server(13.67.95.11 which is a variable)
| set-FrontendTransportService EXCH01-HYB-FS -InternalDNSAdapterEnabled $false |
| set-FrontendTransportService EXCH01-HYB-FS -InternalDNSServers 13.67.95.11 |
| set-FrontendTransportService EXCH01-HYB-FS -ExternalDNSAdapterEnabled $false |
| set-FrontendTransportService EXCH01-HYB-FS -ExternalDNSServers 13.67.95.11 |
Restart the FF. Services:
Microsoft Exchange Frontend Transport
Microsoft Exchange Transport
Checked Domain Type via accepted domain
TO check:
| get-FrontendTransportService | select ExternalDNSAdapterEnabled,InternalDNSAdapterEnabled,ExternalDNSServers,InternalDNSServers |
