Outlook setup for K9

Support
1

Hi There,
searched arround (in forum and web) but can’t find a sollution.
“Years” ago, I worked with K9 and outlook and it worked fine.
Since then little break and now I want to work again with it.

I tried to setup K9 with the informations provided by Microsoft oon official page (can’t put link here):

IMAP:
|**IMAP server**|outlook.office365.com|
|**IMAP port**|993|
|**IMAP encryption**|SSL/TLS|
|**Authentication Method**|OAuth2/Modern Auth|

→ I can receive mails fine.

SMTP:
|**SMTP server name**|smtp-mail.outlook.com|
|**SMTP port**|587|
|**SMTP encryption**|STARTTLS|
|**Authentication Method**|OAuth2/Modern Auth|

→ Can not send mails. During setup I got following error:

Authentication unsuccessful

[FR3P281CA0142.DEUP281.PROD.OUTLOOK.COM 2024-12-15T20:52:37.998Z08DD1D3AD35CCF65]

Can’t find a solution. Found the setup guide for Outlook as well, but this was no help so far.
Any ideas?

2

Try changing the Sending outgoing server from smtp-mail.outlook.com to smtp.office365.com

And see if that gets you through the setup step.

3

Same Error.
And I thought, the parameters from official Microsoft page should be correct.

4

Is this an end user free account, or one through an organization? If an organization, they may have restricted the ability to fetch and/or send email.

5

It’s my free ****@outlook.de account, so there should be no restrictions.

Can anybody using K9 with outlook verify that those SMTP parameters are the right one?
I can find various different settings in the net, it seems as Microsoft changed there a lot in the past years.