published

Please comment on how you are invoking email notifications, in general and for taxonomy subscriptions. Does anyone see a problem with workflow and drupal access model and/or 3rd party modules that supply that type of functionality?

With workflow, the natural point at which an announcement notification message should be sent is when the content changes to a certain workflow state -- e.g. "Posted". And the tools I see available for this task range from "send a tokenized email to a role" via the Token module (token_action.module) to the Subscriptions module.