The company acknowledged that "some users" were still having trouble accessing their email. "We're working tirelessly to restore access to their accounts," Yahoo added.
At 6:30 p.m. ET, Yahoo said it was still working on outstanding problems.
Yahoo replied to the user, "We're working on this right now and we expect all emails to be delivered by tomorrow afternoon."
However, @Kidsonthekorner wasn't buying it. "Not really comforting when you've been saying that for the last two days," she replied.
For Gottheil, the outage is a major blow to Yahoo and CEO Marissa Mayer's attempts to turn around a company that had been lagging for years.
"I'd say there is a major panic at Yahoo about now," he said. "Gmail is innovating all the time, and lots of things integrate with it. Some people will switch because, for email, it's all about uptime... It's certainly a setback. It's harder to innovate when you're struggling to keep the lights on."
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