Smtp Load Balancing ((full)) -

The load balancer periodically "pings" the servers (e.g., checking for the SMTP banner or a HELO response) to ensure they are ready to accept mail. Common Implementation Methods

: New servers can be added to the pool seamlessly without disrupting service, allowing organizations to scale as email volume grows. smtp load balancing

Here's helpful content on — covering why it's needed, common methods, tools, and configuration tips. The load balancer periodically "pings" the servers (e

: Balances traffic based on IP address and port (usually port 25 for relaying or 587 for client submission). It is fast but cannot "see" individual emails within a single long-lived TCP connection. smtp load balancing