Integrate similar image previews as in Skype / Slack, rather than just "Download":
- Enable copy pasting of an image from preview
- Enable zoom on image when passing mouse over it
- Open preview in a sub-window for better viewing

Hello,
cli tool is not user's compliant :)
Users should be able to delete (not just deactivate) their datas without any admin intervention.

Currently, using the UX, we cannot determine the last time a user when offline. this feature is useful and could be compared with flowdock.com, as you can see in the image https://user-images.githubusercontent.com/907914/71488129-12347800-2873-11ea-8b03-867c8fc2b357.png

Steps to reproduce:
mattermost Server 5.16+
Open a conversation 1-1 with any user, and if it is offline, we cannot determine since when that user is offline

Expected behaviour:

Open a conversation 1-1 with any user and if is offline. Display as part of user status since when the user is offline.

Currently it is not possible to have notifications triggered based on keywords, for example if there are any emergency keywords, a certain ringtone or vibration (or both) will be triggered.

This would be important in the event of any emergency that requires immediate action.

Support all issue status update event transitions, not just only status changes when the ticket is reopened, or when resolved/closed, and assignee changes.

We use the issue status transition to trigger the QA Team to start work. Would be nice to have these notifications via the Mattermost Integration

Users can minimize an image preview of an URL that is directly pasted in the message, with the cross button at the top left corner. However, there is no such button if the same image is inlined with the folowwing syntax .

It'd be useful to have a way of minimizing inline images, like Slack does and like Mattermost does for raw URL previews.

This is a follow-up on multiple requests from the users of moussetc/mattermost-plugin-giphy on GitHub (Issue 12).

Add an server wide option to forbid renaming user names. It might be a security problem, if someone claims abandoned user name (/account name).

Right now, only mattermost instance admin can export teams but only all teams.
There is two issues:

• first: we can't export one team (see this request: https://mattermost.uservoice.com/forums/306457-general/suggestions/39225376-mattermost-bulk-export-single-selected-team)


• second: it's the instance admin job to export

It would be a great improvement if team admin could use the user interface (and not has to ask to his instance admin).

When a user is removed from a channel, they aren't notified in any way - the channel just disappears from their window. It would be helpful to indicate that you've been removed.

I am using macOS Mojave and every time I copy some text from a different source (website, text editor) with command C and then try to paste it in a conversation with command V it doesn't work.

Copy and paste only works if I copy paste with the right click of the mouse, which is slower and more uncomfortable

This would require major architectural changes for the Mattermost server, but adding some use cases to gather feedback from the community.

Server admins wouldn't be able to read the content of conversations because they don't hold the keys to decrypt, which means users wouldn't have to worry about
- Server admins spying on their private conversations
- Governments subpoening server admins into handing over conversations
- Hackers taking control of the server being able to read the conversations

Have a button in the code block to copy it on clipboard

The use case is to provide information to users, for example, release notes, status updates, etc. In order to keep the channel relevant and to avoid clutter, non-admin users have read-only access.

This feature allows a team to create "reference" channels.

1. team admins: create, read, update, delete


2. non-admin users: read-only

This idea is similar to, and currently under review for Enterprise Edition:

https://mattermost.uservoice.com/forums/306457-general/suggestions/12874797-add-write-policy-for-channels-and-private-groups#comments

This idea is related to:

https://mattermost.uservoice.com/forums/306457-general/suggestions/11205615-different-user-roles-to-configure

While the current Bulk Export Tool - https://docs.mattermost.com/administration/bulk-export.html#running-the-bulk-export-command - allows backend admins to export all the teams based on the following command:

sudo ./mattermost export bulk /home/user/bulk_data.json --all-teams

It will be great to have the ability to export single / selected team to remove any "inactive" teams when moving / migrating systems around.

The current workaround of removing unwanted teams from the export file is not ideal for instances that have a large number of teams.

The new wide tab bar steals useful screen real estate, introduces visual redundancy to our single-server setup (team name mentioned twice within a really small area of UI), and makes the app look even less at home on macOS. The old top of the window bar at least looked native. Please consider making the tab bar optional at least in single-server environments.

https://en.wikipedia.org/wiki/Pomodoro_Technique

I would like to be able to see a preview of the attached image even if I am in Compact Message Display Mode.
Currently, even if the Account Settings > Display > Default appearance of image previews is set to Expanded, the image is only displayed as an attachment icon when Account Settings > Display > Message Display is set to Compact. These two settings should work independently of each other.

This has already been requested here:

https://mattermost.uservoice.com/forums/306457-general/suggestions/18607111-confirm-with-ping-warning-before-sending-all-eve

But for some reason, the confirmation has been implemented only for (at)all and (at)channel, which still allows people to use (at)here mindlessly (without realizing they're about to ping sixty or more people, for example).

So, I kindly request (at)here to be added to this list.

Support Gitea's OAuth2 provider as an authentication source.

Currently, the team edition only supports GitLab as an OAuth2 source. GitLab is pretty heavyweight and many people prefer other software for a variety of reasons.

Gitea (https://gitea.io/en-us/) is a really nice open source, community supported Git server. They recently added support for acting as an OAuth2 provider (see https://docs.gitea.io/en-us/oauth2-provider/ for documentation). It would be great if Mattermost would support Gitea as an OAuth2 provider.