mail1.example.com A 192.0.2.10 mail2.example.com A 192.0.2.11
A Layer 4 load balancer, such as HAProxy or Azure Load Balancer, works by distributing raw TCP connections on ports like 25, 587, or 465.
How To Load Balance Smtp [cracked]
mail1.example.com A 192.0.2.10 mail2.example.com A 192.0.2.11
A Layer 4 load balancer, such as HAProxy or Azure Load Balancer, works by distributing raw TCP connections on ports like 25, 587, or 465.