# Block users to their own teams **URL:** \ **Category:** Troubleshooting\ **Created:** [March 24, 2020, 12:55am UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267 "2020-03-24T00:55:11Z")\ **Posts on this page:** 17\ **Page:** 1
**Author:** ![rajbps](https://avatars.discourse-cdn.com/v4/letter/r/e9c0ed/32.png) [@rajbps](https://forum.mattermost.com/u/rajbps)\ **Post date:** [March 24, 2020, 12:55am UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/1 "2020-03-24T00:55:11Z")
Hi Team, Is mattermost a multi tenancy product pls as the opensource version Rajbps ---
**Author:** ![amy.blais](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/amy.blais/32/7481_2.png) [@amy.blais](https://forum.mattermost.com/u/amy.blais)\ **Post date:** [March 24, 2020, 1:04pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/2 "2020-03-24T13:04:44Z")
Do you mean users shouldn’t be able to join other teams on the server? ---
**Author:** ![rajbps](https://avatars.discourse-cdn.com/v4/letter/r/e9c0ed/32.png) [@rajbps](https://forum.mattermost.com/u/rajbps)\ **Post date:** [March 24, 2020, 3:00pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/3 "2020-03-24T15:00:57Z")
yes please and not able to add poeple from the server from different teams to theirs ---
**Author:** ![amy.blais](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/amy.blais/32/7481_2.png) [@amy.blais](https://forum.mattermost.com/u/amy.blais)\ **Post date:** [March 24, 2020, 3:18pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/4 "2020-03-24T15:18:52Z")
There are a few settings you can use to do that: - This will add a restriction so that only users with certain email domains can join a team: [https://docs.mattermost.com/help/settings/team-settings.html#allow-only-users-with-a-specific-email-domain-to-join-this-team](https://docs.mattermost.com/help/settings/team-settings.html#allow-only-users-with-a-specific-email-domain-to-join-this-team). - Turning this setting to “No” will make a team private, and then you will need to manually add specific users that you want to be added to a team, or you can use the team invite link: [https://docs.mattermost.com/help/settings/team-settings.html#allow-anyone-to-join-this-team](https://docs.mattermost.com/help/settings/team-settings.html#allow-anyone-to-join-this-team). ---
**Author:** ![rajbps](https://avatars.discourse-cdn.com/v4/letter/r/e9c0ed/32.png) [@rajbps](https://forum.mattermost.com/u/rajbps)\ **Post date:** [March 24, 2020, 3:32pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/5 "2020-03-24T15:32:16Z")
Hi amy.blais, I have those settings set but when a user from a team domain1 clicks on Add New Member to domain1 Team, all the users of the server shows up even the ones that has different domains ☹ ---
**Author:** ![amy.blais](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/amy.blais/32/7481_2.png) [@amy.blais](https://forum.mattermost.com/u/amy.blais)\ **Post date:** [March 24, 2020, 8:51pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/6 "2020-03-24T20:51:26Z")
What Mattermost server version are you on? ---
**Author:** ![rajbps](https://avatars.discourse-cdn.com/v4/letter/r/e9c0ed/32.png) [@rajbps](https://forum.mattermost.com/u/rajbps)\ **Post date:** [March 24, 2020, 9:44pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/7 "2020-03-24T21:44:16Z")
### Mattermost Enterprise Edition Modern communication from behind your firewall. Mattermost Version: 5.4.0 Database Schema Version: 5.4.0 Database: mysql ---
**Author:** ![amy.blais](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/amy.blais/32/7481_2.png) [@amy.blais](https://forum.mattermost.com/u/amy.blais)\ **Post date:** [March 24, 2020, 10:06pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/8 "2020-03-24T22:06:38Z")
Would you be open to upgrading to a more recent version? Our most recent version is v5.21.0. ---
**Author:** ![rajbps](https://avatars.discourse-cdn.com/v4/letter/r/e9c0ed/32.png) [@rajbps](https://forum.mattermost.com/u/rajbps)\ **Post date:** [March 24, 2020, 10:17pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/9 "2020-03-24T22:17:05Z")
sure can you guide me on the instructions pls I have this installed on centos 7 ---
**Author:** ![rajbps](https://avatars.discourse-cdn.com/v4/letter/r/e9c0ed/32.png) [@rajbps](https://forum.mattermost.com/u/rajbps)\ **Post date:** [March 24, 2020, 11:07pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/10 "2020-03-24T23:07:16Z")
Hi amy.blais, I have upgraded to the latest version as suggested but still have the same issue. Any other ideas please? Regards, Rajbps ---
**Author:** ![amy.blais](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/amy.blais/32/7481_2.png) [@amy.blais](https://forum.mattermost.com/u/amy.blais)\ **Post date:** [March 25, 2020, 1:12pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/11 "2020-03-25T13:12:04Z")
Are you able to add all those users that have a non-allowed email domain to all the teams (even if they show up in the list of users)? ---
**Author:** ![rajbps](https://avatars.discourse-cdn.com/v4/letter/r/e9c0ed/32.png) [@rajbps](https://forum.mattermost.com/u/rajbps)\ **Post date:** [March 25, 2020, 3:40pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/12 "2020-03-25T15:40:41Z")
No I can`t but I can`t let everyone see them also. This will be for 2 companies, so each company will have its own team and should only view their users. I am looking for a way to stop them to search users on the actual mattermost box itself but just in their own group/team. How can I achieve that please? Regards, Raj ---
**Author:** ![grundleborg](https://avatars.discourse-cdn.com/v4/letter/g/3ec8ea/32.png) [@grundleborg](https://forum.mattermost.com/u/grundleborg)\ **Post date:** [March 25, 2020, 4:15pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/13 "2020-03-25T16:15:20Z")
Hi @rajbps Mattermost is not designed for true multi-tenancy on a single server. The expectation is that “Teams” represent different groups within a single organisation, so while the membership of those teams and access to the channels within them can be locked down, it is assumed that users should be able to direct message each other regardless of what teams they belong to across the server. Unfortunately, I don’t think Mattermost has full-blown support for the use case you are looking for where the users on all the teams are completely isolated from each other. To get total isolation, you would need to spin up one Mattermost server per tenant. ---
**Author:** ![grundleborg](https://avatars.discourse-cdn.com/v4/letter/g/3ec8ea/32.png) [@grundleborg](https://forum.mattermost.com/u/grundleborg)\ **Post date:** [March 25, 2020, 4:16pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/14 "2020-03-25T16:16:44Z")
> This will be for 2 companies, so each company will have its own team and should only view their users. I am looking for a way to stop them to search users on the actual mattermost box itself but just in their own group/team. I think in this specific case the best (and simplest) solution would be to spin up 2 separate Mattermost servers. ---
**Author:** ![rajbps](https://avatars.discourse-cdn.com/v4/letter/r/e9c0ed/32.png) [@rajbps](https://forum.mattermost.com/u/rajbps)\ **Post date:** [March 25, 2020, 9:09pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/15 "2020-03-25T21:09:11Z")
Thats ok I can do that. Is there any plans for a multi tenancy platform in the future pls? ---
**Author:** ![rajbps](https://avatars.discourse-cdn.com/v4/letter/r/e9c0ed/32.png) [@rajbps](https://forum.mattermost.com/u/rajbps)\ **Post date:** [March 25, 2020, 9:32pm UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/16 "2020-03-25T21:32:16Z")
Hi Grundleborg, What I am looking for can be done via the Permissions =\> All members =\> and remove add team members. I was able to get the with a trial license key. Can that same option be changed without a key please? ---
**Author:** ![ahmaddanial](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mattermost.com/ahmaddanial/32/2938_2.png) [@ahmaddanial](https://forum.mattermost.com/u/ahmaddanial)\ **Post date:** [April 2, 2020, 6:40am UTC](https://forum.mattermost.com/t/block-users-to-their-own-teams/9267/17 "2020-04-02T06:40:23Z")
Hi, @rajbps I came across the [What are the fundamental security challenges with Massive, Multi-Tenant Applications (MMTA)?](https://docs.mattermost.com/overview/faq.html#what-are-the-fundamental-security-challenges-with-massive-multi-tenant-applications-mmta) documentation that would explain the concerns that Mattermost has with developing Mattermost as a multi-tenant platform. To answer the question that you have here: > [@rajbps](#): > > Can that same option be changed without a key please? May I know if you are referring to the usage of [Advanced Permissions](https://docs.mattermost.com/deployment/advanced-permissions.html) here? If yes, I would recommend you to subscribe to either [E10 / E20](https://mattermost.com/pricing/) offering of Mattermost.