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One.com Outage History

Every past One.com outage tracked by IsDown, with detection times, duration, and resolution details.

There were 221 One.com outages since September 2018. The 36 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor January 21, 2026

January 2026: Issues with Exchange

Detected Jan 21, 2026 4:59 AM EST · Resolved Mar 16, 2026 5:17 AM EDT · Duration about 2 months

One.com experienced a prolonged Exchange service incident lasting over 1,295 hours where customers could not create new Exchange accounts, reset passwords, upgrade tiers, change billing cycles, or remove accounts through the control panel. The issue affected all Exchange management functions while email sending and receiving remained operational throughout the incident. The service was eventually restored, allowing normal Exchange account management to resume.