MailmanHost vs Groups.io: Which Should You Choose?

Groups.io and MailmanHost both run email discussion groups, but they are fundamentally different products. Groups.io is a proprietary all-in-one community platform. MailmanHost is managed hosting for open-source GNU Mailman. Choosing between them is really choosing between a closed suite with lots of built-in extras and an open, portable list you fully own. This MailmanHost vs Groups.io comparison lays out the differences so you can pick the right one.

The core difference

Groups.io is a hosted platform with its own software. Alongside email it offers calendars, polls, chat, files, a wiki, subgroups, and integrations, on a freemium model with paid Premium and Enterprise tiers. Your group lives inside Groups.io on Groups.io’s terms.

MailmanHost runs real GNU Mailman (versions 2 and 3) for you. You get a modern admin, searchable archives, full deliverability management, and a list built on open standards that you can migrate elsewhere at any time. It is focused on doing mailing lists extremely well rather than being a broad community suite.

Feature comparison

Where Groups.io wins

Credit where due. If your group wants an all-in-one hub with a calendar, polls, chat, a wiki, file storage, and integrations with tools like Slack, Groups.io delivers that out of the box, and its interface is polished. For a hobby community that values those extras over portability, it is a genuinely good option, and the free tier lets small groups start at no cost.

Where MailmanHost wins

• You own your data. Real GNU Mailman means standard exports and no lock-in. If you ever leave, you take your lists and archives with you.
• Open standards. No proprietary format holding your community hostage.
• Deliverability expertise. SPF, DKIM, and DMARC configured and maintained by specialists. See our deliverability guide.
• Done-for-you migration. Moving in (from DreamHost, Google Groups, or elsewhere) is handled for you.
• Predictable per-list pricing. You pay for the lists you run, with no feature paywalls gating core list functionality.

Which should you choose?

Choose Groups.io if you want a closed, all-in-one community suite with lots of non-email features and you are comfortable with a proprietary platform.

Choose MailmanHost if you want a professional, portable, open-source mailing list, expert deliverability, and full ownership of your data and archives. For organizations, associations, and anyone who treats their list as critical infrastructure, ownership and deliverability usually matter more than bundled extras.

Still comparing the field more broadly? See our top Mailman hosting providers roundup, or if you are leaving Google Groups specifically, our Google Groups alternatives guide.

Frequently asked questions

Is Groups.io the same as Mailman?

No. Groups.io is proprietary software, not GNU Mailman. MailmanHost runs genuine open-source Mailman, so your lists and archives stay portable.

Can I move my Groups.io group to Mailman?

Yes. You export your members and content and import them into a Mailman host. A managed host such as MailmanHost can assist with the move.

Which is cheaper, MailmanHost or Groups.io?

It depends on usage. MailmanHost is per list from $8 per month; Groups.io is freemium with Premium around $20 per month. For a single serious list, per-list pricing is often more economical. See our price comparison.

Does MailmanHost have calendars and polls like Groups.io?

No, and that is deliberate. MailmanHost focuses on doing mailing lists exceptionally well with a modern admin and searchable archives, rather than bundling separate collaboration tools.

Want an open, portable, professionally managed list? See MailmanHost plans or talk to us.