We have a JIRA project that integrates with our helpdesk's ticketing system, pushing tickets for the development group into JIRA. We have four development teams that work out of that JIRA project, using a custom field to mark an issue as belonging to one of those teams. Is there a way to fire an email based on that field value being set? I have a separate notification scheme for that particular JIRA project, but it looks like I can only send notification on the issue changing, not a specific field value changing. Is there a plugin that might work for this solution (we are using OnDemand), or maybe some other option that I'm not seeing? Thanks!