Primary and secondary servers are essential in email marketing for several reasons:
Reliability: Having a secondary server ensures that your email deliverability is not compromised in case of a primary server failure. Load Balancing: Secondary servers help in distributing the load, especially during peak times, to avoid any bottlenecks or delays. Redundancy: They provide a failover mechanism, which is crucial for maintaining continuous service. Scalability: With the help of secondary servers, your email marketing infrastructure can easily scale to meet increasing demands.