Marissa Mayer on Yahoo Mail Outage: 'We Really Let You Down'

Yahoo CEO Marissa Mayer apologized Friday night for an extended outage that affected some Yahoo Mail users this week. Calling the problem more complex than it first appeared, Mayer said she was "very sorry," but that the company had restored the inboxes of almost all of its users.

Mayer wrote on Yahoo's Tumblr page that the problem was first noticed at 10:27 p.m. on Monday, Dec. 9 when Yahoo Mail experienced a hardware outage that affected 1% of its users. Without going into detail, Mayer said the problem was "nuanced," affecting different users in different ways, so it wasn't an easy fix.