In the context of Email Marketing, primary and secondary servers play crucial roles in ensuring that marketing emails are delivered efficiently and reliably. A primary server is the main server responsible for sending and receiving emails. It handles the majority of the email traffic and is usually configured with the best hardware and software to ensure maximum uptime and performance.
On the other hand, a secondary server acts as a backup to the primary server. Its main role is to take over in case the primary server fails or becomes overloaded. This ensures that there is no downtime in email delivery, thereby maintaining the reliability and integrity of your email campaigns.