I'd like to share my experience implementing Proxmox Mail Gateway (PMG) with Carbonio CE, an integration that, in my opinion, greatly enhances email security and management in production environments.
PMG filters and analyzes all SMTP traffic before it reaches Carbonio, acting as an anti-spam and antivirus barrier. This significantly reduces the load on the main server and improves domain reputation by blocking threats, phishing attempts, and suspicious messages at the system's edge.
Furthermore, its integration capabilities with tools like ClamAV, pfSense, DNSBLs, custom filters, and LDAP authentication make it an ideal complement for those managing Carbonio CE servers in enterprise or educational settings.
I've prepared a practical course on Proxmox Mail Gateway focused on its implementation with Carbonio CE and pfSense, covering everything from installation to configuring filters, quarantine, certificates, and authentication. For those who wish to delve deeper into this integration, you can find the full content here: https://networldcu.com/curso-antispam-proxmox-mail-gateway/
I believe this combination can be very valuable to those of us already managing Carbonio CE who are looking to strengthen email system security. I'd love to hear about your experiences or similar configurations.