TrekMail
Zoho Mail
SpinUp
Microsoft 365
Google Workspace
FastMail
Gmail
ProtonMail
c12n.cloud
Proxmox VE
OpenNebula
VMware ESXi
XCP-ng
VMware vCenter
vSphere
Harvester
TrekMail is a modern business email hosting platform built for solo professionals, teams, agencies, and automation workflows. It combines reliable domain email, a full webmail client, and flexible sending options in one clean system.
Users can connect their domain, create mailboxes, and access email via IMAP/SMTP or built-in webmail. The webmail includes rich compose, contacts, calendar, templates, and mobile-friendly access. TrekMail also works with common clients like Apple Mail, Outlook, Gmail app, and Thunderbird.
For teams and agencies, TrekMail simplifies operations. You can manage domains and mailboxes from one dashboard, onboard users, create mailboxes in bulk, and configure aliases, forwarding, filters, and catch-all routing. Migration tools help move existing email via IMAP.
Sending is flexible: use managed SMTP on paid plans or connect your own provider. Storage is pooled across mailboxes, making it more efficient than fixed per-user limits.
TrekMail also supports API and automation workflows, including use cases for AI agents and custom integrations.
The platform is privacy-focused: no ads, no data usage for AI training, and email filtering runs on its own infrastructure.
TrekMail is a practical alternative to traditional email suites for anyone who wants professional email on their own domain with more control, flexibility, and predictable pricing.
c12n is a 100% open-source, fully automated cloud platform that puts you back in control of your own sovereign Infrastructure as a Service (IaaS).
c12n is more than just an alternative to VMware; itโs a reliable, secure, open-source cloud solution that caters to modern enterprise needs, a liberation from the overpriced commercial solutions. Whether youโre managing a highly secure air-gapped environment or scaling from 5 to 500 nodes in a converged or hyper-converged setup, c12n gives you the tools to do so with ease. Our platform is entirely open source, meaning there are no licensing fees and no hidden costs โ just open industry standards and transparent project development.
The power behind c12n lies in its foundation of proven open-source technologies. At its core is OpenStack, a free, open standard cloud computing platform that provides all major IaaS features and has a global footprint of over 45 million compute cores.
This is complemented by Kubernetes, the leading container orchestration platform, and Ceph, a distributed software-defined storage platform capable of holding 50 PB+ of data. We also integrate Argo for Continuous Delivery, Prometheus for comprehensive monitoring, and MAAS for managing the lifecycle of bare-metal servers.
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TrekMail's answer
TrekMail is built for multi-domain email operations: one dashboard to manage many domains and mailboxes with an infrastructure-first approach, pooled storage, practical routing (catch-all/forwarding), and flexible SMTP (managed SMTP or bring your own). Itโs optimized for operators (agencies, domain owners), not โper-seat office suites.โ
c12n.cloud's answer:
c12n is the only open-source cloud solution integrating end-to-end GitOps automation with OpenStack, Kubernetes and Ceph. c12n is highly scalable, secure and requires minimum day-2 Ops.
TrekMail's answer
Choose TrekMail if you want to avoid the per-user tax and need a clean way to run email across multiple domains: faster domain onboarding, centralized admin, migration tooling, and the option to keep your own SMTP stack while still using TrekMail for mailboxes and management.
c12n.cloud's answer:
Why pay for VMware when you can have 80% of its functionality for free? c12n is 100% Open Source and 100% Automated with 0% License fees. c12n puts you back in control of your own sovereign Infrastructure as a Service (IaaS), it is designed to be vendor-lock free, giving you the freedom to choose your support providers or even operate the platform with your own in-house expertise like some customers do.
TrekMail's answer
Agencies, IT operators/MSPs, small businesses, and domain portfolio owners who manage multiple domains and need reliable business email infrastructure without paying for seats they donโt need.
c12n.cloud's answer:
Managed Service Providers (MSP), cloud providers and literally any organization that wants to run their own cloud either due to security & legal requirements or to reduce costs compared to public cloud or proprietary solutions such as VMware and Nutanix.
TrekMail's answer
TrekMail was created to solve a common ops pain: running professional email on many domains becomes messy and expensive with traditional seat-based suites. TrekMail focuses on the essentialsโdomains, mailboxes, routing, and migrationsโso operators can scale email cleanly from a few domains to hundreds.
c12n.cloud's answer:
The team behind c12n has been working with Openstack for more than 10 years. Tools such as Kubernetes and ArgoCD gave us a completely new set of possibilities to deploy, upgrade and operate OpenStack and Ceph in a highly efficient way. Since 2017 weโve been running the first OpenStack installation on Kubernetes and quickly realized the power of such a combination.
TrekMail's answer
TrekMail is built on a modern web stack: a Laravel/PHP backend, Linux-based mail infrastructure (SMTP/IMAP), and a responsive web UI for admin + webmail access.
c12n.cloud's answer:
The power behind c12n lies in its foundation of proven open-source technologies. At its core is OpenStack, a free, open standard cloud computing platform that provides all major IaaS features and has a global footprint of over 45.000.000 compute cores.
This is complemented by Kubernetes, the leading container orchestration platform, and Ceph, a distributed software-defined storage platform capable of holding 50 PB+ of data. We also integrate ArgoCD for Continuous Delivery, Prometheus for comprehensive monitoring, and MAAS for managing the lifecycle of bare-metal.
TrekMail's answer
c12n.cloud's answer:
This information is confidential
The unified dashboard makes bulk domain management, mailbox provisioning, and DNS health and the user friendly interface, reasonable prices, and prompt technical support. . I also like that it doesnโt charge per user, which is perfect when you manage multiple domains.
Iโve been using TrekMail to manage multiple domains, and itโs been a huge upgrade. The dashboard is clean, setup is fast, and not paying per mailbox makes scaling simple and affordable. I especially like the flexibility with BYO SMTP and the ability to organize everything from one place. Migration was smooth, and overall it feels reliable and built for real-world use.
Having a multitude of tools in one place to manage websites is often quite challenging, but TrekMail seems to have solved this problem quite simply. It provides a ready-made platform for managing operations for agencies that communicate with different clients. TrekMail simplifies email domain management, and it's great to have everything organized in one place, making managing people much easier. Managed SMTP also helps with email management and enhances security. While the system isn't perfect in every aspect, it's an extremely useful tool for agencies or anyone who wants to be organized and streamlined.
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