WebJun 4, 2024 · Using the client credentials flow for SMTP Authentication is currently not supported. See the NOTE in Microsoft's doc on the SMTP Protocol Exchange. Also, see this post from the Exchange Team Blog. They just added support for IMAP and POP in June 2024. SMTP is not yet there and they have not shared a timeline for when they … WebJun 30, 2024 · Microsoft has documented the requirements and configuration steps to use OAuth with POP/IMAP in Microsoft 365 in this article: Authenticate an IMAP, POP or SMTP connection using OAuth Microsoft ...
Sending SMTP email with Microsoft Graph and OAUTH …
WebMay 30, 2024 · I modified the calling code as suggested and authentication was still unsuccessful. Here's the end of the protocol log: C: AUTH XOAUTH2 S: 334 C: BASE64USERANDTOKEN S: 535 5.7.3 Authentication unsuccessful [MN2PR15CA0014.namprd15.prod.outlook.com] C: QUIT S: 221 2.0.0 Service closing … WebOct 15, 2024 · 3. I am trying to build an application that sends emails from my Microsoft office email account, in Python using SMTP for sending with OAuth2 for authentication. The authentication is not working, I am getting reply: retcode (535); Msg: b'5.7.3 Authentication unsuccessful [LO2P265CA0061.GBRP265.PROD.OUTLOOK.COM]'. butchers plate shaw
Start using OAuth for Office 365 POP/IMAP authentication
WebMay 7, 2016 · The reason for using OAuth 2.0 when sending email with an Office365 account is that we don't want to have to store passwords on our server. Also, if the user changes their password, we won't know unless they tell us or manually update it on our system side. Using OAuth 2.0 this would solve this problem and allow the application to … WebAug 10, 2024 · Finance and operations apps don't support multifactor authentication or Modern auth (OAuth 2.0) for SMTP. Administrators might have to re-enable Basic authentication to allow for SMTP AUTH. For more information, see Enable or disable SMTP AUTH. The Exchange mail provider can be used if a more modern integration is desired. WebAug 30, 2024 · Note As per the current test with SMTP Oauth 2.0 client credential flow with non-interactive sign in is not supported. ... You would have to choose and implement a different flow, or use a different protocol or Exchange Web Services (EWS, also being deprecated), or Microsoft Graph (which has some limitations over the others). ccu football depth chart