Best practices exchange 2010 installation

If the Exchange databases are not configured for a default OAB when Exchange is installed, the new default OAB will be created on an Exchange server, causing the Exchange mailboxes to incur a full download of the OAB. This will allow the servers to proxy connections to mailboxes to without authentication prompts. Consider installing Exchange into an Active Directory deployment site to avoid internal domain joined clients from looking up the SCP on Exchange servers.

For the most recent build of Exchange, please use this link. This assumes that you previously set the SCP to a load - balanced namespace. This is a step that is noted later in th is blog. Determine where the SCP is pointed using this example:.

To point to the existing namespace:. Null the SCP on :. Implement all recommendations called out in each warning to avoid future outages or performance issues. Consider running this after placing an increased load on the servers or potentially after patching. Also consider reviewing this document for additional best practices.

If you have followed the guidance of the Exchange Deployment Assistant , you may already have a table created similar to the one in that guide to document your URL settings.

Depending on your plan, you may be using existing certificates or may be creating new ones. At this point you can create your DAGs following t he guidance here. Now that we have completed the deploy, the next steps are to migrate. Be sure to test and verify that the mailboxes can connect through Exchange by creating a HOSTS file entry on the client machine. Example host entry that would point the client to Earlier in this document , it was recommended to deploy Exchange in a separate AD site.

Depending on that modification , you would now set the SCP to point to either the internal FQDN of the server or the load balanced namespace. For additional details please see this document. Once you have verified that clients are connecting, you can plan to move DNS from to point to , modify load balance d pools, update MX records, firewall rules, NAT assignments, etc. If in hybrid, r un the newest version of the HCW and input the servers that that will be handling hybrid functions.

E xample s:. Please refer to Managing mailbox moves for details. Please note that in some cases you may need to restart the Autodi scover Application Pool to avoid connectivity issues as discussed here. The guidance for migration of public folders is here. After you've finished deploying and configuring Exchange in your organization, you may be ready to remove previous versions of Exchange.

For more information about removing legacy Exchange servers, see Modify or Remove Exchange You must be a registered user to add a comment.

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Several customers raise concern w. Posted: October 20th, under Best Practices. Emails can be spoofed or forged in several ways. A simple example is to use Telnet to forge an email as shown more…. Comments: Disable TLS 1. A note on Sending Bulk Mails Using Exchange You may need to send a bulk of mails for the business need that require sending advertisements to customers.

For example, if a customer were to deploy a system capable of holding 20 drives it may have a layout like the following. In the example above, we have TB of Exchange database storage and 7. BitLocker is used to encrypt each disk, thereby providing data encryption at rest and mitigating concerns around data theft or disk replacement. Within each site resilient datacenter pair, you'll have one or more DAGs.

It isn't recommended to stretch a DAG across more than two datacenters. As with the namespace model, each DAG within the site resilient datacenter pair operates in an unbound model with active copies distributed equally across all servers in the DAG. This model:. Ensures that each DAG member's full stack of services client connectivity, replication pipeline, transport, and so on. Distributes the load across as many servers as possible during a failure scenario, thereby only incrementally increasing resource use across the remaining members within the DAG.

Each datacenter is symmetrical, with an equal number of DAG members in each datacenter. This means that each DAG has an even number of servers and uses a witness server for quorum maintenance. The DAG is the fundamental building block in Exchange With respect to DAG size, a DAG with a greater number of participating member nodes provides more redundancy and resources.

Within the PA, the goal is to deploy DAGs with a greater number of member nodes, typically starting with an eight-member DAG and increasing the number of servers as required to meet your requirements. You should only create new DAGs when scalability introduces concerns over the existing database copy layout. The PA uses a single, non-teamed network interface for both client connectivity and data replication.

A single network interface is all that is needed because ultimately our goal is to achieve a standard recovery model regardless of the failure - whether a server failure occurs, or a network failure occurs, the result is the same: a database copy is activated on another server within the DAG. This architectural change simplifies the network stack and obviates the need to manually eliminate heartbeat cross-talk. The placement of the witness server determines whether the architecture can provide automatic datacenter failover capabilities or whether it will require a manual activation to enable service if there is a site failure.

If your organization has a third location with a network infrastructure that is isolated from network failures that affect the site resilient datacenter pair in which the DAG is deployed, then the recommendation is to deploy the DAG's witness server in that third location. This configuration gives the DAG the ability to automatically fail over databases to the other datacenter in response to a datacenter-level failure event, regardless of which datacenter has the outage.

If your organization doesn't have a third location, consider placing the server witness in Azure ; alternatively, place the witness server in one of the datacenters within the site resilient datacenter pair. If you have multiple DAGs within the site resilient datacenter pair, then place the witness server for all DAGs in the same datacenter typically the datacenter where most of the users are physically located.

Exchange Server and all earlier versions don't support the use of the Cloud Witness feature first introduced in Windows Server Failover Cluster. Data resiliency is achieved by deploying multiple database copies. In the PA, database copies are distributed across the site resilient datacenter pair, thereby ensuring that mailbox data is protected from software, hardware, and even datacenter failures.

Each database has four copies, with two copies in each datacenter, which means at a minimum, the PA requires four servers. Out of these four copies, three of them are configured as highly available. The fourth copy the copy with the highest Activation Preference number is configured as a lagged database copy.

Due to the server design, each copy of a database is isolated from its other copies, thereby reducing failure domains and increasing the overall availability of the solution as discussed in DAG: Beyond the "A". The purpose of the lagged database copy is to provide a recovery mechanism for the rare event of system-wide, catastrophic logical corruption.

It isn't intended for individual mailbox recovery or mailbox item recovery. The lagged database copy is configured with a seven day ReplayLagTime. In addition, the Replay Lag Manager is also enabled to provide dynamic log file play down for lagged copies when availability is compromised due to the loss of non-lagged copies.

By using the lagged database copy in this manner, its important to understand that the lagged database copy isn't a guaranteed point-in-time backup. To protect against accidental or malicious item deletion, Single Item Recover or In-Place Hold technologies are used, and the Deleted Item Retention window is set to a value that meets or exceeds any defined item-level recovery SLA.

With all of these technologies in play, traditional backups are unnecessary; as a result, the PA uses Exchange Native Data Protection. Exchange mailbox servers should be configured to rely on the local OOS farm in their datacenter to ensure the lowest possible latency and highest possible bandwidth between the servers to render file content to users. Exchange Server continues to improve upon the investments introduced in previous versions of Exchange and introduces additional technologies originally invented for use in Microsoft and Office By aligning with the Preferred Architecture, you'll take advantage of these changes and provide the best on-premises user experience possible.