Slack vs. Zimbra by Synacor

Slack is really effective for smaller teams to use as an internal communication platform. I think that it's still suitable even for companies of up to 500-1000 employees, but for larger teams it's less appropriate (or would require more aggressive organization, e.g. keeping channels protected and on an invite-only basis). It's really helpful for small team-to-small team communication too (like in our case where we create external channels to support POCs/business partnerships). It's not great for direct collaboration (e.g. it's hard to iterate on a project spec or a document together, directly in Slack) but it's well suited for conversational coordination, like planning meetings or asking informational questions.

Incentivized

I consider Zimbra Email & Collaboration a viable alternative to the major American cloud email platforms. In a scenario where data protection and privacy are critical, especially in an on-premise environment, Zimbra is a very suitable solution. It is also capable of offering a comprehensive set of tools and additional features (tasks, calendars, contacts, briefcase) in an integrated manner.

Incentivized

• Huddles Run smoothly without any interferences.
• Smooth individual calls quick and easy without any interruptions.
• seamless notifications across multiple devices
• The ability to easily tag a team member to urgently attend to a specific escalation.
• Slack being user friendly and able to integrate easily with other platforms and apps.
• How to easily open up different channels for different escalations and needs.
• a safe direct messaging option.

Incentivized

• The management of incremental mail backup. It is very simple, and the administrators of my company recover information quickly.
• The management of the distribution lists is structured. This allows easy distribution of mass information.
• The web application is very complete and intuitive.

Incentivized

• Undoubtedly Slack’s search function is powerful but sometimes it is difficult to find specific messages or files in very active channels with high message volumes. This needs an improvement.
• I have experienced notification issues on my phone. I am not receiving notifications and have missed important updates as a result. I tried uninstalling and reinstalling the app, but the problem still persists.
• The Business Plus plan does not include support for data loss prevention or offline backup providers.

Incentivized

• User web interface could be more friendly, but it is enough for daily use. It could be renewed and has to consider some usability concerns. Improving usability would significantly improve users' satisfaction.
• Message backup recovery is not a simple activity.
• As an administrator, some of the features work better using the command-line interface.
• The webclient uses ajax requests in almost every event. Because of that you may need a fast internet connection to have a good experience. You can switch to HTML version but it will limit what you can do.

Incentivized

Slack sitll lacks in functionality. It's better than Skype for Business in many ways, but it is still another chat/message board app. It has limits in free version and paid versions. Also Windows app has errors that bother me, for example, I see number on one of my team's icons. It suggests that one of channels has unread messages; I check all channels - no unread messages, but that "1" still appears

Incentivized

The product is fantastic, it keeps everyone connected and ensures detailed connection.

User interface of Slack software is very is very straightforward no need for training.

Availability of unlimited tutorials and demos.

Slack can be easily tailored to perform specific tasks.

Incentivized

The web usability of the solution is adequate, with all functions integrated into a single interface. However, it is important to note that in the desktop environment, it lacks its own application and relies on ActiveSync synchronization with reference solutions like Outlook or Thunderbird. Some features, such as the briefcase, will be excluded. The same happens on smartphones.It is also common for competing solutions to include integrated chat or video call tools, which Zimbra lacks. These shortcomings are among the most frequently requested by users.

Incentivized

Yes, the app works 24/7. I don't even recall having any period that we could not use since the implementation. Even the maintenance periods are barely noticeable and our work is not impacted by it when it happens.

Incentivized

Slack is a soft app, we don't have many issues with it. I recall one or two people complaining about something during our usage period, but I didn't have a bad experience. When the app is slow, usually the problem is with my computer or my internet. The app works just fine.

Incentivized

Whenever I've had to troubleshoot an issue with Slack (which, to be honest, has not happened very often), their online documentation has been easy to locate, easy to understand, and effective in resolving my issue. Slack's ever-growing popularity also means that there's a large community of practice out there that can be depended upon.

Incentivized

I was not part of the implementation team, but I recall being 100% happy and excited to learn and use a new tool. I'm still am to be honest.

Incentivized

Overall, we were satisfied with the implementation. We perhaps should have spent more time consulting with Zimbra or others regarding best practices but as we got to know the system better we were able to make changes relatively easily after the fact.

Incentivized

I like Slack better than ClickUp, because I would spend 30-60 minutes a day updating my ClickUp tasks. The way ClickUp was used was very micromanaging. I billed by the hour, so I was willing to put in the time to alert the boss what tasks I was working on.

One of my jobs used Hive - I mostly just ran it in the background in case anyone messaged me. I did not use it often.

Incentivized

• We were originally a Groupwise shop before changing to Zimbra in 2008. Zimbra, from an end-user standpoint, pricing, system administration, and management is a far better system.
• We use Google Apps for our students. We did not find it to be suitable for faculty and staff due to its lack of shared accounts.
• We are moving from Zimbra to Office 365. Office 365 offers just about all that Zimbra had, though its web interface is inferior to that of Zimbra. It does offer us greatly reduced costs though, and high availability. If Zimbra were to have a fully HA environment, we may have stayed with them.

Incentivized

• Slack has been incredibly helpful in connecting various tech apps and ecosystems, creating a more streamlined and responsive process.
• Slack has made it significantly easier to communicate with our team members across multiple time zones, creating a more engaging environment for our all-remote team.

Incentivized

• Improved internal communication and dissemination and distribution of messages and corporate objectives.
• The creation of an internal network of employees is something that gives us security and confidence.
• Having a private and exclusive messaging system differentiates us from the competition and from other companies.