'Your email server rejected your login. Verify your user name and password for this account in Account Settings. The server responded: -ERR Logon failure: unknown user name or bad password.'

Hi Dennis, 

Thank you for posting your concern in the Community Forum. Let's see what we can do to help the situation. Could you please verify which application you are using to access your Outlook.com account and having issues with? Are you still being able to log in to your account via a web browser (Outlook.com)? It would be more helpful if you could elaborate on the exact issue for us to better assist you.

At this point, we suggest that you check the Service health status of your account through this link to know if there an outage or issues running on the server currently. Any results from this will highly be appreciated.

We'll keep an eye out for your next revert.

*For the purpose of this email and problem, I am using Outlook 2019 from the Office 2019 Pro package.

*I have used the POP3 mail protocol for a number of years to retrieve my mail from the outlook.com server.

*The error message in my request started occurring on April 2

*I have two accounts set up in the Outlook 2019, each one receives the same error during Send/Retrieve.

*Using the same login names and passwords that I am using in Outlook 2019, I am able to connect to Outlook.com  via a browser and see my emails.

*Also note in my original post, this same connection problem started on the same date when trying to retrieve mail using POP3 protocol on the email app in Ipad and the email app in Android phones.

*I worked for an extended period of time with an Outlook 2019 engineer to troubleshoot the problem. When the engineer had tried everything from an application standpoint, they concluded that the problem was outlook.com server related.

*After posting to the Outlook.exe group, they immediately sent me back to the Office team.

*Given that the problem exists on Microsoft products AND on IOS products AND Android products, it is easy to conclude that something changed around April 2 on the Outlook server side that affected all products using POP3 protocol to retrieve email from Outlook.com

Hi MilleniaLtd,

I appreciate you for giving that information. Hence, it turns out that we need to check the account further if the issue is on the server’s end. Therefore, we suggest that you contact our Outlook.com In-App Support as they are more than just equipped to get this done and resolve this matter at the same time. To get in touch with them, please follow the steps below:

1. Log in to your Outlook.com account. 
2. Click the ? icon at the top right corner. 
3. Type in your query in the box and select the Get help button. 
4. Go to Still need help option below and click on Yes. 
5. Confirm the email address where you want to receive an update from our In-App Support and then click Send. 

Or, you may directly contact them via the links below:

Email Microsoft Support

Chat with Microsoft Support

Note: The waiting time would change depending on their volume.

If you need more advice from us, merely reply to this thread. Or, create a new thread using this link if you have a different concern.

In the other thread, one person mentioned using pop-mail.outlook.com as the server setting.

Are you using pop-mail.outlook.com?

Have you tried using outlook.office365.com ?

Have you checked if POP access is still enabled?

I have worked 90 minutes with Office 2019 Outlook support.  Their conclusion was the issue was not app related.  They directed me to the Outlook.com In-App support.

Outlook.com In-App support requested additional information, which I replied.  Their immediate reply after receiving my response was to send me back to Microsoft Office 2019 Outlook support.

I continue to suggest that if the same error message occurs when attempting to retrieve mail from the Outlook.com server from 3 different products using POP3 authentication (Outlook 2019, IOS 13 Ipad, Android) then the issue lies with Outlook.com.  But it seems no one wants to look at that as the issue.

*These are the settings that have been used for 4+ years across all platforms (Office/Outlook, IOS, Android)

* outlook.office365.com does not work

*pop3 is still enabled in my Outlook.com settings

I have worked 90 minutes with Office 2019 Outlook support.  Their conclusion was the issue was not app related.  They directed me to the Outlook.com In-App support.

Outlook.com In-App support requested additional information, which I replied.  Their immediate reply after receiving my response was to send me back to Microsoft Office 2019 Outlook support.

I continue to suggest that if the same error message occurs when attempting to retrieve mail from the Outlook.com server from 3 different products using POP3 authentication (Outlook 2019, IOS 13 Ipad, Android) then the issue lies with Outlook.com.  But it seems no one wants to look at that as the issue.