SOGo review (2026): is it any good?
Open-source groupware with webmail, calendars and contacts
SOGo report card
Fair · out of 4.0 · graded Nov 13, 2026
Best for groupware you run yourself
SOGo is open-source groupware with webmail, calendars and contacts that you install on your own server. Production-ready builds sit behind a paid support contract starting at 500 euros a year, and the free nightly builds aren't meant for production.
Who SOGo is for
- Fits if you run mail for an organisation and want webmail with shared calendars
- Works for admins who already run IMAP and database servers
Who SOGo is not for
- Skip it if you don't want to run a server, as it gives you no hosted mailbox
- Skip it if you want production builds without paying, since those need a support contract
- Watch out: support contracts are priced in euros, 500 to 7,500 a year
- Watch out: the price list is dated September 2024
Why SOGo gets a 2.2
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- CValue for moneyFree only if you host it yourself, which needs a mail server and a database. Production builds need a support contract from 500 euros a year.
- CFree plan and trialThe software is free to download, but the free route is nightly builds that the project calls untested.
- BFeaturesWebmail, calendars, contacts, ActiveSync and Outlook and Thunderbird support, and the listing shows no gap in the groupware job.
- DEase of useYou install it and wire it to your own mail and database servers.
- BPlatforms and integrationsA web interface, plus ActiveSync, Outlook, Thunderbird and Apple Calendar connections. There's no desktop app of its own.
What these grades rest on. Graded from this listing, whose facts were read from Alinto's own pages on 13 November 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
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<a href="https://toolgpa.com/tools/sogo#review"><img src="https://toolgpa.com/badge/sogo.svg" alt="SOGo: 2.2 GPA on ToolGPA" width="196" height="56"></a>Where SOGo stands among email apps
SOGo's GPA of 2.2 is higher than 29 of the 122 other email apps we grade, and level with 24.
It stands best on features (B, above 79 of 122) and worst on ease of use (D, above 0).
SOGo has no paid plan.
On features, ease of use and platforms it scores 2.3 out of 4. Nothing scores higher for less, though at least one tool matches that score at a lower price.
Each grade against the category
Every bar is all 123 email apps we grade, cut by the letter each got. SOGo’s own letter is outlined.
- CValue for moneyAbove 13 of 122, level with 53
- CFree plan and trialAbove 9 of 122, level with 59
- BFeaturesAbove 79 of 122, level with 43
- DEase of useAbove 0 of 122, level with 19
- BPlatforms and integrationsAbove 57 of 122, level with 54
Price against what you get
Each dot is one of 107 email apps. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Keep SOGo, or make your own?
Keep it
SOGo is free, so making your own would save you nothing.
And it is not the kind of software a weekend replaces. That makes this kind of software worth paying for, not this one in particular: 69 of the 122 other email apps grade higher.
What you could make
- Calendar: an app builder makes this well.
What you could not
- An email client: sending, receiving, threading and searching years of mail.
- Sharing with other people, which means accounts and invitations.
- The depth: we grade its features B, which means it covers the whole job.
What this rests on. SOGo’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is SOGo?
SOGo is a groupware server with a browser interface for mail, calendars and address books. It is released under the GPL and LGPL and is run on your own servers. Native clients connect through CalDAV, CardDAV and Microsoft ActiveSync. Paid support contracts from Alinto unlock the official production package repositories.
Worth knowing
- It is software to install: you supply the mail and database servers, and it provides no hosted mailbox.
- Production-build package repositories require a paid support contract from Alinto; free users get nightly builds.
- Nightly builds are described as untested and not recommended for production use.
- Support contracts are priced in euros per year: 500, 1,500, 5,000 or 7,500, per a price list dated September 2024.
Key features
- Web interface for mail and groupware
- An AJAX-based interface for email, shared calendars and address books across an organization.
- Standards-based sync
- Supports CalDAV, CardDAV and GroupDAV, with IMAP and SMTP for mail, so many native clients can connect.
- ActiveSync for phones
- iPhone, Android and Windows Phone devices can sync email, contacts, events and tasks through Microsoft ActiveSync.
- Outlook and Thunderbird support
- Outlook works through the free CalDAV Synchronizer plugin. Thunderbird has SOGo Connector and Integrator extensions.
- Built for large deployments
- The site says SOGo has run in production with thousands of users and focuses on scalability and open standards.
- Paid support tiers
- Yearly Alinto contracts cost 500 to 7,500 euros and add production repositories, incident tickets and response times.
SOGo pricing
As of Nov 13, 2026, SOGo is free to use.
- Starts at
- Free
- Free plan
- The software is free to download and run yourself, with community support through a mailing list.
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| Community | $0 | Free software you host yourself, with nightly builds, mailing-list help and documentation. No official releases or bug fixes. |
Read from sogo.nu on Nov 13, 2026. Prices change, so confirm with SOGo before you buy.
Works with
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Common questions
Does SOGo have an Android app?
No Android app was listed when its pages were read on Nov 13, 2026. SOGo is listed for Web.
Does SOGo have an iPhone app?
No iPhone app was listed when its pages were read on Nov 13, 2026. SOGo is listed for Web.
Is SOGo open source?
Yes. SOGo is open source, according to its own site. It can also be run on a server of your own.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Nov 13, 2026.