Error connecting to hotmail-com.olc.protection.outlook.com

Hello starrxu ，

Welcome to the Microsoft Community！

I understand that you have encountered a 504 error while connecting to hotmail-com.olc.protection.outlook.com, and I understand your confusion and frustration with this issue.

In order to get a good understanding of your problem, I need to confirm some details of the issue with you:

• What email server are you trying to add? Is it POP3, IMAP or Exchange?

• What is the domain of the account you are using? For example: @live.com,@hotmail.com,@outlook.com,@msn.com.@gmail.com

• According to your description “This happens after I open the no password account and then close it”, can I understand that you enable the no password feature and then disable the no password feature? Please feel free to point out my misunderstanding, thank you for your patience and understanding!

• Have you set up SMTP client submission? If yes, please share with us a detailed screenshot and if convenient, please share with us how you set up the SMTP client to send emails using Office 365, thank you for your cooperation.

Also, if you are experiencing this issue while using Authenticator, it is recommended to click on Feedback directly from Authenticator and a Authenticator support expert will see your feedback and provide support.

If you have forgotten your password, depending on the error message, you may need to retrieve your account password first, or if you are using the correct account password, it is recommended that you refer to the documentation to reset your account password:

Change your Microsoft account password - Microsoft Support

Reset a forgotten Microsoft account password - Microsoft Support

We hope the above can point you in the right direction and wish you all the best!

Best Regards ,

Morning | Microsoft Technical Support Community 

Hi, my replies:

• What email server are you trying to add? Is it POP3, IMAP or Exchange?

I believed is IMAP via Gmail "Add another email address".

• What is the domain of the account you are using? For example: @live.com,@hotmail.com,@outlook.com,@msn.com.@gmail.com

st*****@hotmail.com

• According to your description “This happens after I open the no password account and then close it”, can I understand that you enable the no password feature and then disable the no password feature? Please feel free to point out my misunderstanding, thank you for your patience and understanding!

Yes. All along was working until I turn on passwordless feature in hotmail security. I have turned this feature off already but still unable to add back this account in my Gmail.

• Have you set up SMTP client submission? If yes, please share with us a detailed screenshot and if convenient, please share with us how you set up the SMTP client to send emails using Office 365, thank you for your cooperation.

Dear starrxu

The traditional GMAIL settings for configuring external accounts do not apply to the passwordless login feature.

Therefore it is first recommended that you cancel the passwordless login, set your Microsoft account password, and use port 587 for the SMTP server encryption port TLS.

We hope you will test it again and look forward to your reply

Best Regards ,

Shawn Zhou | Microsoft Technical Support Community 

Dear starrxu

As to whether there has been any update on your question.

I would like to ask you if your problem has been solved, or if there are any other issue

I look forward to your reply.

thx

Best Regards ,

Shawn Zhou | Microsoft Technical Support Community