Scheduled Maintenance: Zimbra upgrade (Sep 9, 9:00 PM–12:00 AM MDT)
We will be performing planned maintenance on the Zimbra mail platform tonight, Tuesday, September 9, from 9:00 PM to 12:00 AM MDT. During this window we are retiring the Zimbra 9 MTA/Proxy servers and bringing the Zimbra 10 servers online. This upgrade is part of our rolling migration to Zimbra 10.
Impact: Webmail, IMAP, POP, SMTP, and ActiveSync may experience intermittent outages or longer downtime while the new servers come online. Inbound mail will queue and deliver once services are restored. No data loss is expected.