Thunderbird Login To Server Outlook Office365 Com Failed

Refiner Finland

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Mar 09, 22 (Updated: Sep 30, 22)

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1. Mozilla.org
Refiner Everywhere 2 years ago

Cannot connect to office365, was working yesterday (Oct 17)

https://support.mozilla.org/bm/questions/1270884

Starting late yesterday I began to get this error - Login to server outlook.office365.com with username [email protected] failed.

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Checked At HTTP Status Code Connect Time (ms) Result
2024-05-13 17:04:54 200 254 Page Active
2024-05-07 08:13:15 200 5 Page Active
2024-04-28 20:50:10 200 254 Page Active
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2. Microsoft.com
Announcer Mumbai, Maharashtra, India 2 years ago

Cannot log onto my outlook365 account from mozilla ...

https://answers.microsoft.com/en-us/msoffice/forum/all/cannot-log-onto...

"Login to server outlook.office365.com with username #####@####.com failed. I can log on outlook365 online just fine, it is just via thunderbird that it ...

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Scholar Sweden 2 years ago

Can't connect to Exchange Online because of incorrect ...

https://docs.microsoft.com/en-us/exchange/troubleshoot/administration/...

Describes a scenario in which Office 365 users who connect to ... that's used to automatically discover server names for connectivity ...

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3. Reddit.com
Reviewer Helsinki, Finland 2 years ago

Problem with Exchange (outlook office 365) : r/Thunderbird

https://www.reddit.com/r/Thunderbird/comments/f973gp/problem_with_exch...

I tried different IMAP and SMTP settings but no success. Error message: Login to outlook.office365.com with username [email protected] failed. The ...

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4. Stanford.edu
Refiner Berlin, Germany 2 years ago

How to Configure Thunderbird for Office 365 Using IMAP ...

https://uit.stanford.edu/service/office365/configure/thunderbird-oauth...

This will fail and a message saying "Thunderbird failed to find the settings for your email ... IMAP; Server hostname: outlook.office365.com ...

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5. Ysu.edu
Informed 2 years ago

Office 365 Mail: Thunderbird

https://ysu.edu/sites/default/files/Office_365_Mail_Client_Configurati...

Office 365 Mail Client Configuration Guide (Thunderbird) ... the Microsoft Outlook mail client. ... Thunderbird will either fail to find the settings.

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6. Qmul.ac.uk
Reviewer 2 years ago

Set up Thunderbird with Office 365 - IT Services

https://www.its.qmul.ac.uk/support/self-help/email_setup/settingupemai...

'Thunderbird failed to find the settings for your email account.' 8. Amend Incoming IMAP server hostname to 'outlook.office365.com' and Outgoing SMTP to ...

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7. Lifewire.com
Editor Brighton, United Kingdom 2 years ago

Access Outlook Mail (Outlook.com) in Mozilla Thunderbird

https://www.lifewire.com/access-outlook-in-thunderbird-3572532

Set up Outlook.com in Thunderbird Using IMAP · IMAP server name: outlook.office365.com · IMAP port: 993 · IMAP encryption method: TLS · SMTP server ...

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8. Custhelp.com
Legendary Holzkirchen, Deutschland 2 years ago

Setting up Thunderbird mail for Microsoft 365 post-migration

http://otago.custhelp.com/app/answers/detail/a_id/3608/~/setting-up-th...

screenshot of step 8 Outgoing Server (SMTP) tab in Thunderbird; Change Authentication method: to OAuth2 , ensure connection security is ...

5
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9. Wccnet.edu
Reviewer Alpharetta, GA, United States 2 years ago

Configure Thunderbird with Office 365 Email (IT User Support)

https://www.wccnet.edu/mywcc/faculty-staff/its/user-services/email/thu...

Not working? Make sure you entered your email and password correctly and try again. Also, be sure to update the server to outlook.office365.com vs .edu ...

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10. Usf.edu
Editor Firenze, IT 1 year ago

Configuring Mozilla Thunderbird - University of South Florida

https://www.usf.edu/it/documentation/office365/config-thunderbird.aspx

a. Incoming server hostname: outlook.office365.com b. Outgoing server hostname: outlook.office365.com c. Username: enter your @usf.edu email address

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11. Mozillazine.org
Scholar Canada 1 year ago

TB doesnt work with App Password - MozillaZine Forums

http://forums.mozillazine.org/viewtopic.php?f=39&t=3069349

Suddenly, today, I can not login anymore to my Outlook account with TB. ... Mail server outlook.office365.com responded: Logon failure: unknown user name or ...

6
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12. Cf.ac.uk
Explainer Ahmedabad, Gujarat, India 1 year ago

Configuring Thunderbird and Using it to Access Office 365 ...

https://docs.cs.cf.ac.uk/notes/thunderbird-email-application/

Office 365 incorporates a Microsoft Exchange Server so you can use any client program that has ...

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13. Getmailbird.com
Informed Columbus, OH 1 year ago

6 Common Thunderbird Email Problems with Simple Solutions

https://www.getmailbird.com/thunderbird-email-problems/

Select Server Settings in the left-hand tab. Make sure you're using the 993 port, SSL/TLS connection security, and “Normal” password. 2. Check ...

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14. Exeter.ac.uk
Organizer 1 year ago

Setting up your university O365 email using Thunderbird

https://www.exeter.ac.uk/media/level1/academicserviceswebsite/it/docum...

This guide details how to setup your University of Exeter email account using ... Change the Server Name to outlook.office365.com and change the Port.to 993.

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15. Usc.edu
Organizer 1 year ago

Configuring Your Email Client for Office 365 - USC IT Services

https://itservices.usc.edu/office365/emailclients/

Existing accounts configured to connect using IMAP and SMTP will need to update their client and client configuration to an OAuth2 compatible ...

2
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16. Uiowa.edu
Guru Toronto, ON, Canada 1 year ago

Configuring Your Email Client to Use IMAP or POP to Access ...

https://its.uiowa.edu/support/article/100640

We recommend using the Microsoft Outlook mobile app but you can ... Using Thunderbird (Windows) to Access Your Office 365 Email Account.

1
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17. Wisc.edu
Explainer Moldova 1 year ago

Office 365 (Thunderbird) - Configure Modern Authentication

https://kb.wisc.edu/helpdesk/page.php?id=102005

Configure Thunderbird for Office 365 · Description: WiscMail (wisc.edu) · Server Name: smtp.office365.com · Port: 587 (default) · Connection ...

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18. Getmailspring.com
Disciplined 1 year ago

How to access your Office365 email account using IMAP

https://getmailspring.com/setup/access-office365-via-imap-smtp

Access your Office365 account via IMAP with these setup instructions. ... from a desktop email program, you'll need the IMAP and SMTP settings below: ...

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19. Ox.ac.uk
Teacher Portland, OR 1 year ago

How to configure your email client | IT Help - University of Oxford

https://help.it.ox.ac.uk/how-to-configure-your-email-client

Configure email applications such as Outlook, Thunderbird and Apple Mail on your ... To access Nexus365 you need an Oxford username and Single Sign-On (SSO) ...

5
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20. Msofficeforums.com
Legendary 1 year ago

Sending of message failed. The message could not be sent ...

https://www.msofficeforums.com/outlook/47234-sending-message-failed-me...

Outlook>Sending of message failed. ... When using Thunderbird I get: ... I get: "Connection to server outlook.office365.com was reset"

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21. Rochester.edu
Refiner Ramat Gan, Israel 1 year ago

Access Office 365 Using Thunderbird - University IT

https://tech.rochester.edu/tutorials/access-office-365-on-a-mac-using-...

Office 365 email access with Thunderbird requires Thunderbird version 77.0b1 or ... Server hostname: outlook.office365.com; Port: Auto; SSL: Autodetect ...

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22. Thunderbird.net
Outspoken Madurai, India 1 year ago

Owl for Exchange - Thunderbird Add-ons

https://addons.thunderbird.net/en-us/thunderbird/addon/owl-for-exchang...

Allows you to use your Exchange and Office365 email account using Outlook Web Access (OWA) with Thunderbird. After setup, your account ...

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23. Uct.ac.za
Guru Bologna, Italy 1 year ago

Office 365 Thunderbird setup - UCT ICTS

http://www.icts.uct.ac.za/Office365_Thunderbird

If you use the Exchange Web Services (EWS) connection, the server name will be: https://outlook.office365.com/EWS/Exchange.asmx. Incoming (IMAP).

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24. Askwoody.com
Curious 1 year ago

Cannot send email from Thunderbird 91.2.1 (32-bit) - AskWoody

https://www.askwoody.com/forums/topic/cannot-send-email-from-thunderbi...

Outgoing SMTP Server: smtp.office365.com. Port: 587. Connection Security: STARTTLS Authentication Meth: Normal password. Server Settings

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25. Odoo.com
Reviewer San Francisco, CA, United States 1 year ago

outgoing mail server not working with smtp.office365.com | Odoo

https://www.odoo.com/forum/help-1/outgoing-mail-server-not-working-wit...

I cannot send outgoing emails with the microsoft office 365 email server. I configured an IMAP & SMTP Client with Thunderbird, working perfectly.

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Frequently Asked Questions

How do I configure Outlook 365 for Thunderbird?

Enter the following settings: Incoming: IMAP. Server hostname: outlook.office365.com.
...
Set up a new Thunderbird account
  1. Server hostname: smtp.office365.com.
  2. Port: 587.
  3. SSL: STARTTLS.
  4. Authentication: Oauth2.

Does Mozilla Thunderbird work with Office 365?

Thunderbird supports the internet standard access methods POP3 and IMAP4. Thunderbird does NOT support Microsoft's proprietary protocols to access Exchange servers or Office 365. If your administrator does not allow IMAP access, then you won't be able to use Thunderbird with your account.

Why is Thunderbird not connecting to server?

What should I do if I can't connect to the mail server in Thunderbird? If this happens, first try to log into your account through a web browser. Then, restart the Thunderbird app and try to re-login.

Does Thunderbird work with Outlook COM?

Thunderbird can be used as a client for all of Microsoft's email services (Hotmail, Outlook.com and Windows Live Mail, henceforth referred to as "Hotmail"). Thunderbird will download messages from the Hotmail server and store them on your local system.

Is Mozilla Org legit?

Firefox is always free. If you are ever asked to pay to download Firefox, it's a scam. 2. The only way to be 100% sure you're getting a legitimate version of Firefox is to download it from http://www.mozilla.org.

Is Mozilla owned by Google?

Firefox is made by Mozilla Corporation, a wholly owned subsidiary of the not-for-profit Mozilla Foundation, and is guided by the principles of the Mozilla Manifesto.

How do I download Mozilla Firefox?

To install Firefox on your computer:
  1. Visit this Firefox download page in any browser, such as Microsoft Edge.
  2. Click the Download Now button. ...
  3. The User Account Control dialog may open, to ask you to allow the Firefox Installer to make changes to your computer. ...
  4. Wait for Firefox to finish installing.

Is Mozilla Firefox still in use?

Yes. Lots of people use it. According to Browser Market Share Worldwide , 4.2% of the users still use Firefox, which in number of people is a lot. The reason for Chrome being the first is that almost every browser is Chrome now.

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Firefox is a more private and secure browser than Chrome, but Chrome is faster and contains more features. Is Firefox Safer Than Chrome? Both browsers are safe, but Firefox's tracking protection is more comprehensive than Chrome's.

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User Comments - 1

Colin Silvester
1 year ago

All of a sudden, I can't login to Office 365 account (this seems to have happened at the same time as Thunderbird has had a face lift!).
I can login with Windows Outlook and also on Android and Browser.
Only Thunderbird has a problem. I checked all the server settings and account credentials and they are correct. The error reported is "Login to server outlook.office365.com with username [email protected] failed.

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Brief Overview
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Activity Summary

Total Comments
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Last Comment, 1 year ago
Total Status Reports
3
Last Status Report, 10 months ago
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Troubleshooting

Before login, must ensure following:
  • Keyboard CAPS lock is OFF
  • You are not using an old password
  • Your given email/login-name is valid
  • Its not a phishing website
  • Do not use VPN as some sites restrict VPN
  • The internet connection is active and login form is loading cache
  • If the site requires captcha, it must be valid. Regenerate if its not readable
  • Still not resolved? Visit FAQs page
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