The googleapps-message-recall software is an application to be hosted on Google AppEngine for recalling messages within a Google Apps domain.
To support scaling for large domains, the application includes a 'frontend' for processing ui requests and a 'backend' for managing all the user tasks. The work is organized using AppEngine Push Queues and 'backends'. Progress state for the application is stored in the AppEngine NDB.
As Enterprises move to the Cloud, requirements to match pre-Cloud service capabilities follow. One key request from Enterprises of any size has been the ability to administratively remove an Email from all users in the domain. The reasoning for such a request could be for Human Resource, Financial, or Security reasons. Typically, the mail systems the Enterprises moved from had capabilities to perform this type of “message recall”. This functionality does not exist in Google Apps today.
The goal of this software will be to provide similar functionality given the capabilities that exist today for domains to interact with their users mailboxes in a scalable way using Google Cloud services.
The process of setting up the message recall application includes multiple steps. The user must be a domain Super-Admin and will configure an AppEngine application, the Google Apps domain and a Google Developer Console project.
The detailed instructions are included in the INSTALL-MESSAGE-RECALL.pdf file.
Deployment Commands
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To deploy: $ appcfg.py --noauth_local_webserver update . OR $ appcfg.py update . THEN $ appcfg.py update_queues . THEN $ appcfg.py backends . update
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To clear existing appcfg.py auth tokens (if you change users): $ rm ~/.appcfg_oauth2_tokens
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To retrieve the code from an existing application: $ appcfg.py --noauth_local_webserver download_app -A .
For questions and answers join/view the googleapps-message-recall Google Group.