This article is aims to describe the detailed steps to add Mailbox server to Database Availability Group (DAG):
Category Archives: Exchange Server
Upgrading Exchange Server Cumulative Update.
Cumulative updates and Service Packs should be installed in the internet-facing site first, before installing in other sites in the organization.
- The first servers to be updated in a site are the Mailbox servers.
- The Client Access servers are updated second.
- Edge Transport servers can be updated last.
Event ID 12016, Certificate Error on Microsoft Exchange Transport
Event ID 12016: There is no valid SMTP Transport Layer Security (TLS) certificate for the FQDN of SERVERNAME.DOMAIN.LOCAL. The existing certificate for that FQDN has expired.
The continued use of that FQDN will cause mail flow problems. A new certificate that contains the FQDN of SERVERNAME.DOMAIN.LOCAL should be installed on this server as soon as possible.
You can create a new certificate by using the New-ExchangeCertificate task.
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Event ID 1196 and 1579, Failover Cluster error on Exchange Servers DAG
Event ID 1579: Cluster network name resource ‘Cluster Name’ failed to update the DNS record for name “DAG DNS Name (DAG.contoso.com)” over adapter ‘MAPI Network’. The error code was ‘DNS operation refused. (9005)’. Ensure that a DNS server is accessible from this cluster node and contact your DNS server administrator to verify the cluster identity can update the DNS record “DAG DNS Name (DAG.contoso.com)“.