Beginning with Semaphor version 1.8.0, team admins can set deletion permissions for a team. Click on the three buttons next to the team name, then select Manage Team.
Under Team Options select Permissions. The Message Deletion section gives three options:
Select the appropriate setting for your team.
To delete a message or file, right click on it, then select the trash can icon.
In the confirmation dialogue select Delete and the message or file attachment will be removed.
It is also possible to delete channels. If you would like more information about that, or about team and channel management in general, please visit our article on how to Manage Teams and Channels on Semaphor.
If you are concerned about your data remaining on our servers, you can read our Semaphor whitepaper here: