Hi everyone,

We currently use Zoho Mail for our primary domain and are evaluating whether to use additional domains (such as .co.in, .us, and other TLDs) as well as mail-enabled subdomains for different business functions and regional operations.

From a cybersecurity and compliance perspective, we'd appreciate insights from anyone who has implemented a similar setup.

For teams already following this approach, has it provided any tangible operational, security, or brand protection benefits compared to managing everything under a single primary domain? We'd also be interested in hearing about your architecture, any challenges you've encountered, and any best practices you've adopted.