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Presuming a DAG already exists, load balancing will be better solution to ensure mail flow, especially if your mail clients connect to your mail servers using the same load balancer. &nbsp;
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yes dag is already configured, <br />
is GSLB load balancing &nbsp;better options for mail flow?
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I would say load balancing is better for everything if the backend accommodates it. &nbsp;If you're running a DAG already, a load balancer would help with fault tolerance and automatic failover.
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Muahammad

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Dear All,<br><br>I am planning to deploy Exchange 2016 SiteResilensce. please advise me which is the best option for Mail Flow Traffic, Mx record priory ( Primary and DR Site Public IP address), or GSLB Load Balancing.<br><br><strong>Main Site Infra:-</strong><br><strong>DC X 2</strong><br>Exchange 2016 x 2<br>SPAM Firewall<br>Netscaler Load Balancing<br><br><strong>DR Site Infra:-</strong><br><strong>DC X 2</strong><br>Exchange 2016 x 1<br>SPAM Firewall<br>Netscaler Load Balancing<br><br><br>
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Dear All,
I am planning to deploy Exchange 2016 SiteResilensce. please advise me which is the best option for Mail Flow Traffic, Mx record priory ( Primary and DR Site Public IP address), or GSLB Load Balancing.
Main Site Infra:-
DC X 2
Exchange 2016 x 2
SPAM Firewall
Netscaler Load Balancing
DR Site Infra:-
DC X 2
Exchange 2016 x 1
SPAM Firewall
Netscaler Load Balancing

Exchange Server Site Resilensce (MX Record Best Practise)

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

dns records

NetScaler is the industry’s leading web and application delivery controller that maximizes the performance and availability of all applications and data, and also provide secure remote access to any application from any device type. NetScaler products are easily selected by determining the edition providing functional needs and the appropriate physical or virtual appliance platform to fulfill performance needs.

NetScaler

A domain controller is a server that responds to security authentication requests within a computer network domain. It is a network server that is responsible for allowing host access to domain resources. It authenticates users, stores user account information and enforces security policy for a domain