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The STAT command did not succeed. Error getting message number and sizes. Mail server outlook.office365.com responded: Server Unavailable. 21

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  • Last reply by pat.g888

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I have no idea how to decode the error message, let alone fix the problem. suddenly i can't download messages from Outlook to TBird (version 115*). I updated to MS's Modern Authentication a few months ago & have been downloading messages just fine until now i can't. didn't change anything in settings.

Help!

Please understand i am NOT an IT professional or anything near it. just a normal clueless user.

I have no idea how to decode the error message, let alone fix the problem. suddenly i can't download messages from Outlook to TBird (version 115*). I updated to MS's Modern Authentication a few months ago & have been downloading messages just fine until now i can't. didn't change anything in settings. Help! Please understand i am NOT an IT professional or anything near it. just a normal clueless user.

Chosen solution

nevermind. issue went away by itself. i blame MSoft.

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Chosen Solution

nevermind. issue went away by itself. i blame MSoft.