Sending emails to talk with client and colleagues cannot always be effective. And slack like software are really good to go for till you have a small team. But as the team starts growing, so will the money to give for this software. So in order to save some budget, you can seek in some slack alternative like mattermost blog. It is most easy and effective solution for team communication. It may not be very well known product but will satisfy you need to most. And you can easily know all about it at https://mattermost.com/blog/. It has both open source and free version just for any company. Its installation is quite easy and step by step guidelines are mentioned at matter most blog. You can read the full guide and follow the steps mentioned religiously to get the installation done perfectly. When looking into the UI, you can make out that its features and interface is quite easy and simple. You can experiment around to know all the things present or go for the demo video to know every detail.
One of the most attractive feature is you can connect with your local network when your internet is not working. And you need not to depend upon third party. If you need more security as encryption, you can modify as per company’s need. As it is free, you can easily download and modify the source code to satisfy your needs. You can have private conversations. Any organization who doesn’t want to spend money on chat service can opt for this app. There is a free trial version available to make you acquainted with software. You can give it a try before getting it into your company. You can easily customize and automate it so as to make your work easier.