You won’t be able to change the name of DiscourseID emails to match your site on any plan. On self-hosted or paid plans you could opt not to use DiscourseID for auth, which would bypass the issue.
You won’t be able to change the name of DiscourseID emails to match your site on any plan. On self-hosted or paid plans you could opt not to use DiscourseID for auth, which would bypass the issue.