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4.7 star rating
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Communications
Email
What are the best (secure, easy-to-use, open standard) replacement for classic email in a commercial environment?
4
Options
Considered
7
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Recs.
Sep 15, 2022
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Best (secure, easy-to-use, open standard) replacement for classic email in a commercial environment
Price
Platforms
Technology
--
Roundcube
Free
Linux, Cloudron
PHP, JavaScript
--
OX App Suite
Free / paid
Linux
-
--
Mattermost
-
Android, iOS, Windows, MacOS, Linux
-
See Full List
--
Roundcube
My Rec
ommendation
for
Roundcube
My Recommendation for
Roundcube
All
9
Pros
5
Cons
3
Specs
Top
Pro
•••
Free and open source
Licensed under GPL v3 with code available on GitHub.
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Top
Con
•••
Extremely clunky unintuitive interface
For example the mouse cursor may start getting stuck and lag.
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Specs
Platforms:
Linux, Cloudron
Technology:
PHP, JavaScript
Top
Pro
•••
Reactive UI for mobile
With elastic skin, Roundcube has an excellent UI also on mobile devices since version 1.4.
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Top
Con
•••
Raises security concerns since it's written in PHP
The language itself and the library ecosystem has a bad security track record.
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Top
Pro
•••
Good documentation
You have access to the documentation for APIs as well plugins development.
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Top
Con
•••
Themes
Not easy to create your own themes.
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Top
Pro
•••
Actively maintained
As of 2022 it is still maintained.
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Top
Pro
•••
Plug-in support
Roundcube allows third-party plugins and has a temporary plugin repository (until the official plugin repository comes out of beta) with over a hundred plugins available, covering authentication, improved security and settings among many others categories.
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Free
Recommend
1
--
OX App Suite
My Rec
ommendation
for
OX App Suite
My Recommendation for
OX App Suite
All
2
Experiences
1
Specs
RickZeeland's Experience
OX App Suite is a modular communication and collaboration platform based on open standards.
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Specs
Platforms:
Linux
Hide
Free / paid
Recommend
1
--
Mattermost
My Rec
ommendation
for
Mattermost
My Recommendation for
Mattermost
All
15
Pros
8
Cons
6
Specs
Top
Pro
•••
Cross-platform
Mobile apps for android and iOS Desktop app for MacOS, Linux and Windows
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Top
Con
•••
The self-hosted option is difficult to setup
Difficult to setup the many features it offers. The easy docker installation is for the application only, not it's feature sets. Requires a license for full-set of features.
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Specs
Platforms:
Android, iOS, Windows, MacOS, Linux
Service integrations:
Yes - Atlassian, Webhooks, Chatbots, Extensions
License:
MIT
Hosting options:
Self-hosted
See All Specs
Top
Pro
•••
You can change theme
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Top
Con
•••
Features not available out of the box
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Top
Pro
•••
Browser notifications
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Top
Con
•••
Centralized
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Top
Pro
•••
Mark-Down support
Yes, it supports markdown.
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Top
Con
•••
No easy End-to-End Encryption setup
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Top
Pro
•••
Free - OpenSource
You can download and use it as free for self-hosted server.
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Top
Con
•••
Poorly made iOS app
Built natively using React it suffers from unresponsiveness, input lag, and sometimes broken services. Coupled with a bad user experience.
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Top
Pro
•••
Similar to Slack
Almost all features of Slack are available in Mattermost.
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Top
Con
•••
Poorly made Android app
The Android application is just a badly wrapped web-view which does not perform well and has no form of offline caching whatsoever.
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Top
Pro
•••
Can be self-hosted
You don't need to rely on someone else's servers, you can host Mattermost on your own server.
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Top
Pro
•••
One-line Docker install 
With Docker set up, you can install Mattermost with the following command: docker run --name mattermost-dev -d --publish 8065:80 mattermost/platform For other cases, installation instructions can be found here.
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here
Recommend
1
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Slack
My Rec
ommendation
for
Slack
My Recommendation for
Slack
Free
Recommend
2
1
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