Dear HestiaCP Community,
I am exploring the possibility of assigning multiple public IPv4 addresses to my HestiaCP instance so that each web and mail domain is reachable via its own dedicated IP address. Here’s the context:
I currently host several web and mail domains on a single HestiaCP instance. All of them share the same IP address, which works well in most cases. However, for enhanced email security and better domain-specific configurations, I’ve implemented measures like DMARC, DKIM, SPF, and a legitimate SMTP relay service (Brevo). The remaining challenge is setting up PTR (Reverse DNS) records for each mail domain.
My cloud provider (Oracle OCI) informed me that PTR records must follow a 1:1 relationship with IP addresses. Since my current setup uses a single shared IP for all domains, they cannot create PTR records for each domain individually. As a solution, I plan to:
- Assign additional network interfaces (each with a unique public IPv4 address) to the instance.
- Configure HestiaCP to bind each mail domain to a dedicated IP address.
My Questions
- Does HestiaCP support such a configuration where each mail domain can use a unique public IP address for both sending and receiving emails?
- If supported, what steps should I follow to configure multiple IPs in HestiaCP for web and mail services?
- Are there any specific considerations or potential issues I should keep in mind when assigning and managing multiple IPs?
Any guidance or documentation links would be greatly appreciated. Thank you in advance for your help!
Best regards.