Software

Roundcube isn’t new, and that’s part of the appeal. It’s trusted, it’s quiet, and it does the one thing it was designed to do: make email accessible via the browser, without overengineering. If your needs are basic but your standards are high — it’s still a strong option.

Nextcloud gives you what most cloud platforms do — without the subscription, vendor tie-in, or data sprawl. It’s not lightweight, but it’s not a monster either. If you’ve got a server and a reason to keep files in-house, it’s one of the more complete options out there.

Rainloop does exactly one thing: webmail. And it does it well. If you’re building an internal toolset, offering hosted mail for a small team, or just need a no-fuss frontend — it delivers without turning into a project of its own. Clean, quiet, and gets out of your way.

Zimbra OSE is for teams that want enterprise-grade mail and groupware without the vendor pricing. It’s a “set it up and let it run” kind of tool, and once dialed in, it serves users well. You’ll need to babysit it now and then, but it gives you freedom — and a whole stack — in one place.