[Google Admin Console] Non-Gmail mailbox routing During your service migration, your Quarantine Summary settings will be moved to the Non-Gmail mailbox setting, so you may want to navigate to this setting to review your Quarantine Summary configuration. For example, if you set up Postini Quarantine Summary reports for weekly delivery on Monday, you'll find the same configuration in the Non-Gmail mailbox setting after your service transition. About the Non-Gmail mailbox setting If your organization uses a non-Gmail mail service such as Microsoft Exchange (or other non-Google SMTP service), you'll be able to use the Non-Gmail mailbox setting to reroute messages to your users' non-Gmail mailboxes. You'll also be able to use this setting to set up the Message Center and Quarantine Summary for your non-Gmail users. [Postini Admin Console] 
Quarantine Summary