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.

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.

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

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.

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

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

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

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

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

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.

Add option to wrap text in code-blocks when using syntax highlighting.

Currently, if you use code-blocks like so:

some very long text .....

It will wrap as expected and no horizontal scrollbar will appear.

However, if you specify syntax highlighting, like so:
c++
Some very long text ....

It will not wrap and introduce scrollbars. I think it'd be nice to have some option to force wrapping, even when doing syntax highlighting.

Side note: Is this actually a bug? Or is it expected?

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.

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.

When a user want to delete his account, he can think "deactivation" is enough but doesn't necessarily know that it just means that he cannot log anymore…

Maybe (in advanced settings):

"By deactivating your account you will no longer be able to log in but the messages will be kept. To permanently delete your account and your messages, please contact your administrator."

And a similar (or the same) message in email notification.

Currently, there is no way for a user to know that their mobile session expired without opening their app and checking it manually. This causes users to potentially miss out important messages as they may not realize that they are signed out.

To solve this, it would be best if the Mattermost mobile app sent a notification when the session is expired, so the user is aware of it and can sign back in.

Image Preview: Add a site blacklist to prevent image previews from selected sites.

Example: Someone can set up private repositories on github that aren't visible to users that aren't logged in and aren't members of the organization. Link preview currently creates a preview of the root github page. This is pretty annoying when you're sharing links to pull requests with coworkers.

Slack recently increased their character limitation on channel names. We would like Mattermost to increase the limit as well, as this has been a helpful feature since it was rolled out.

At the moment all the documentation points to https://mattermost.com which is inaccessible from our environment (no internet access). We have mirrored your documentation to our environment and wish to link to it, instead of https://mattermost.com
At the moment this seems impossible.