Xeams: One Server, Two Roles — Filter First, Host If You Need Some tools are designed to do one job. Xeams isn’t one of them. What you get is a mail filter that can also host email — or a full mail server that quietly works as a smart relay. It doesn’t push you into one model. You decide how deep you want to go.

Out of the box, it starts with mail filtering. That’s where most people use it. Drop Xeams in front of an existing Exchange or Postfix setup, and it’ll take care of spam, quarantine, an

Open365: A Self-Hosted Office Stack That Tried to Do It All There was a time when Open365 looked like the dream stack — email, document editing, file sync, calendar, and contacts, all in one place, all open source. No licenses, no subscriptions. Just spin it up and go. That was the pitch.

The project didn’t stick around long. But it left behind something interesting — a blueprint for building a full-featured, self-hosted collaboration suite from open components. For teams that want to host ever

MailEnable: When You Need a Self-Hosted Mail Server on Windows — Without Exchange Some teams just need email to work — on their own terms, on their own servers, without dealing with cloud panels or per-user licensing. MailEnable has been filling that gap for years. It’s a Windows-based mail server that speaks the standard protocols (SMTP, POP3, IMAP), comes with a webmail client, and runs quietly in the background.

Even the free version covers a surprising amount: multiple domains, browser acce

hMailServer: A No-Nonsense Mail Server for Windows That Just Works There aren’t many mail servers built specifically for Windows. Even fewer that are free, lightweight, and stable over the years. hMailServer is one of the few that still ticks those boxes — and that’s exactly why it keeps showing up in small business networks, test labs, and local environments where simple mail just needs to happen.

It’s not an Exchange replacement. And it doesn’t try to be. Instead, hMailServer focuses on the c