⚖️Load balancing
Postal route load balancing has three primary use cases:
*Delivery is when a message is successfully delivered, Deliverability is when the message hits the inbox.
One sender email address using multiple email service providers
The email address configured in your broadcast or funnel will be used when load balancing multiple API or SMTP Relay connections.
This email address will likely need to be authenticated with each email service provider first.


To route your mail based on the mailbox provider's domain, click Add Domain Route.

Use the dropdown to select a domain group you've created previously.

Select an alternative path for delivering mail to this domain.

Repeat until your postal route is fully optimized according to your delivery strategy.

Use partitioning to split your email for the same domain group across multiple email service providers or MTA delivery policies.


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