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. ..more