The United States Postal Service (USPS) is issuing a mandatory software update for the PostalOne! production system this weekend. This update will be implemented on Sunday, August 20, 2017. The PostalOne! Production (PROD) system will not be available during this update process, on Sunday morning August 20, 2017. PostalOne! will then be updating the Test Environment for Mailers (TEM) on Monday, August 21, 2017 and TEM will be unavailable during that update period.
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