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, January 8, 2017. The PostalOne! Production (PROD) system will not be available during this update process, on Sunday morning January 8, 2017 between 12:00 a.m. and 10:00 a.m. CT. PostalOne! will then be updating the Test Environment for Mailers (TEM) on Monday, January 9, 2017 and TEM will be unavailable during that update period, from 6:00 am to 4:00 pm CT.
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