We seem to have this issue on and off, and Atlassian does not seem to be able to resolve the issue. Basically, we add a file to a service desk ticket. Client receives an email, but when they click on the link to open the attachment in the email, they get a 403 error.
I would assume that they would get redirected to a login screen which would prompt for credentials, but it seems like they get a 403.
Anyone seem to have this issue?