Is there a way to configure global email notification preferences in Phabricator?
I know that it allows to manage the preferences per user (https://secure.phabricator.com/book/phabricator/article/mail_rules/#reducing-email), but I'd like to configure default parameters to be inherited by all new user accounts.
Also it would be great if there is ability to update email notification preferences for existing user accounts in a bulk.
As an admin, go to your Settings and click Global Settings. Change what you want. These will apply to all new accounts.