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Cannot receive email from Office365 Outlook address

  • 4 replies
  • 1 has this problem
  • 1 view
  • Last reply by Keith745

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Hi. I'm using Win 10 Home, current with updates. Yesterday, July 12, Thunderbird 52.9.1 stopped receiving messages from an Office 365 outlook address. It has been working well for 1.5 years. We are able to send messages through this address from Thunderbird. We are able to sign in to our account online. We receive mail on phone aps. I have a friend who has the same problem starting yesterday. This followed an urgent Thunderbird update. We are able to send but not receive. The message when choosing Get Messages is: Sending of password for user ___ did not succeed. Mail server outlook.office365.com responded: Logon failure: unknown user name or bad password. This is set up at a POP / SMTP account. We are able to receive from Yahoo and Gmail addresses, but not from Outlook. What should I try? Thank you.

Hi. I'm using Win 10 Home, current with updates. Yesterday, July 12, Thunderbird 52.9.1 stopped receiving messages from an Office 365 outlook address. It has been working well for 1.5 years. We are able to send messages through this address from Thunderbird. We are able to sign in to our account online. We receive mail on phone aps. I have a friend who has the same problem starting yesterday. This followed an urgent Thunderbird update. We are able to send but not receive. The message when choosing Get Messages is: Sending of password for user ___ did not succeed. Mail server outlook.office365.com responded: Logon failure: unknown user name or bad password. This is set up at a POP / SMTP account. We are able to receive from Yahoo and Gmail addresses, but not from Outlook. What should I try? Thank you.

All Replies (4)

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Please add the troubleshooting information to your post To find the Troubleshooting information:

  • Open Help (or click on three-line-icon and select Help)
  • Choose Troubleshooting Information
  • Use the button Copy to clipboard to select all. Do not check box "Include account names"!
  • Paste this in your post.

Please also add the result of these troubleshooting steps to your post

  • Does Thunderbird work in TB Safe mode (see Thunderbird Safe Mode)?
  • Do you use anti-virus and firewall software? What is the version?
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Hi Matt, I'll paste what you asked for. But first, all the people in our organization who use outlook addresses are not able to get their messages as of Thursday night. So I think the issue is either with Microsoft's Outlook site or our organizations part of that site. I did try TB Safe mode and that did not help. I use McAfee anti-virus and firewall. It has not caused a problem with Thunderbird for the many years that I have used it. I'll copy the Troubleshooting information below in the next post. This one was over 10,000 characters. Keith

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Part 1

Application Basics

   Name: Thunderbird
   Version: 52.9.1
   User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1
   Profile Folder: Open Folder
             (Local drive)
   Application Build ID: 20180709124824
   Enabled Plugins: about:plugins
   Build Configuration: about:buildconfig
   Memory Use: about:memory
   Profiles: about:profiles
 Mail and News Accounts
   account1:
     INCOMING: account1, , (pop3) pop.mail.yahoo.fr:995, SSL, passwordCleartext
     OUTGOING: , smtp.mail.yahoo.fr:465, SSL, passwordCleartext, true
   account2:
     INCOMING: account2, , (pop3) pop.mail.yahoo.fr:995, SSL, passwordCleartext
     OUTGOING: , smtp.mail.yahoo.fr:465, SSL, passwordCleartext, true
   account3:
     INCOMING: account3, , (pop3) localhost:110, plain, passwordCleartext
     OUTGOING: , localhost, plain, passwordCleartext, true
   account5:
     INCOMING: account5, , (pop3) gmail.com:995, SSL, passwordCleartext
     OUTGOING: , smtp.gmail.com:587, alwaysSTARTTLS, passwordCleartext, true
   account6:
     INCOMING: account6, , (none) Local Folders, plain, passwordCleartext
   account7:
     INCOMING: account7, , (pop3) pop.mail.yahoo.com:995, SSL, passwordCleartext
     OUTGOING: , smtp.mail.yahoo.com:465, SSL, passwordCleartext, true
   account8:
     INCOMING: account8, , (pop3) outlook.office365.com:995, SSL, passwordCleartext
     OUTGOING: , smtp.office365.com:587, alwaysSTARTTLS, passwordCleartext, true
 Crash Reports
   https://crash-stats.mozilla.com/report/index/bp-a75d58f5-d4a8-48f9-97e5-8190e0170613 (13-Jun-17)
 Extensions
   Lightning, 5.4.9.1, true, {e2fda1a4-762b-4020-b5ad-a41df1933103}
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Part 2

 Important Modified Preferences
   Name: Value
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     print.printer_Microsoft_Print_to_PDF.print_bgcolor: false
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     print.printer_Microsoft_Print_to_PDF.print_duplex: -437918235
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 JavaScript
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 Accessibility
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 Library Versions
     Expected minimum version
     Version in use
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