White-label email infrastructure for ISPs and hosting providers. Deploy millions of mailboxes on any Kubernetes cluster in minutes. No email expertise required.
Everything you need to offer professional email services to your customers
SMTP, SMTPS, IMAP, IMAPS, POP3, POP3S, and LMTP. All standard email protocols with TLS encryption and modern authentication.
Enterprise-grade spam filtering, virus scanning, and email authentication to protect your customers and their reputation.
True multi-tenancy with complete isolation between customers. Each domain operates independently with its own quotas and policies.
Deploy on any Kubernetes cluster - cloud or on-premises. Declarative configuration with Custom Resource Definitions (CRDs).
Scale from thousands to millions of mailboxes. Stateful message stores with automatic user distribution and load balancing.
Your brand, your service. Customizable webmail, DNS templates, and customer-facing documentation. We stay invisible.
Built on decades of email infrastructure expertise, modernized for cloud-native deployment
Internet
│
├─── SMTP (25/465/587) ──→ Postfix ──→ Rspamd ──→ ClamAV ──→ msgstore-X
│ │
│ (LMTP delivery)
│
├─── SMTP Relay (587) ──→ Auth ──→ Quota Check ──→ DKIM Sign ──→ Deliver
│ │
│ ┌──────────┴──────────┐
│ │ │
│ Local Delivery External MX
│ (hosted domains) (internet)
│
├─── IMAP/POP3 (143/993/110/995) ──→ Dovecot Proxy ──→ msgstore-X
│ │
│ (LDAP routing)
│
└─── HTTPS (443) ──→ Traefik ──→ Roundcube Webmail
3-node multi-master OpenLDAP cluster for user/domain management
Per-pod PVCs with automatic user assignment to least-loaded store
CRDs for plans, domains, users, and passwords with automatic reconciliation
Real-time DKIM keys, rate limiting, and session management
Pre-configured tiers for your customers, or create custom plans via API
All plans include: DKIM signing, SPF/DMARC support, TLS encryption, bounce handling, and 24/7 monitoring
Custom plans available - Define your own tiers via the Kubernetes CRD API
Perfect for organizations that need reliable email infrastructure without the operational burden
Offer professional email services bundled with your internet packages. Just like Comporium and other regional ISPs, provide your subscribers with branded email addresses.
Add email hosting to your service portfolio without building the infrastructure. Integrate via API with your existing control panel and billing system.
Deliver email services to your business clients without managing complex mail infrastructure. Focus on your core services while we handle deliverability.
We handle MX records, DKIM rotation, spam filtering rules, deliverability monitoring, and all the complexities of running email at scale.
Run on AWS EKS, Google GKE, Azure AKS, or your own bare-metal Kubernetes cluster. Your infrastructure, your data sovereignty.
Built-in support for data retention policies, audit logging, and geographic data residency requirements.
Per-mailbox pricing that scales with your business. No hidden fees, no surprises. Volume discounts available.
Get in touch with our team to discuss your requirements and see a live demo of the platform.