What does "[IN-USE] account is locked by another session or for maintenance, try again." mean?

Posted by John on Ask Ubuntu See other posts from Ask Ubuntu or by John
Published on 2011-03-05T20:17:26Z Indexed on 2011/03/05 23:32 UTC
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I'm in the process of migrating a computer from Windows To Ubuntu. I followed these instructions to move my Thunderbird emails over. The emails that I moved show up, but when I try to check for new emails I get this message:

Sending of password did not succeed. Mail server pop.windstream.net responded:

[IN-USE] account is locked by another session or for maintenance, try again.

I click OK and another box pops up saying:

Login to server pop.windstream.net failed.

With 3 options:

  • "Enter new password" (I'm SURE the one I'm typing is correct)
  • "Cancel"
  • "Retry"

I've tried all 3. Retyping my password, clicking "Retry", same result.

While I was typing this, I got a toast that said:

Thunderbird's attempt to connect to pop.windstream.net has timed out.

What is causing this and how can I fix it?

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