Using New Outlook on Windows for professional communication and productivity
Always the same on the 6th of april !
This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
bonjour,
Technical details
SmtpSubmissionPermanent5XXException: Smtp submission failed. Server 'smtp.hostinger.com' Port '465'. --> Unexpected SMTP server response. Expected: 235, actual: 535, whole response: 535 5.7.8 Error: authentication failed: UGFzc3dvcmQ6
Failure code: cf24
Using New Outlook on Windows for professional communication and productivity
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Always the same on the 6th of april !
Same issue here, failure code cf24. Nothing changed for me either. I am surprised that this problem has not been solved in such a long time. The work of business e-mails has been disrupted
To day, the march 2024, I have exactly the same problem.
Trying the New Outlook with the same IMAP configuration that "Courrier" that is working well for 10 years
(Port 993 for Imap and port 465 for SMTP)
The recept works. The send is impossible with french SFR/Numericable operator.
It is the same for 2 different IMAP account working well with "Microsoft Courrier (traditional mail client)".
Reject message below :
"SmtpSubmissionPermanent5XXException: Smtp submission failed. Server 'smtp.numericable.fr' Port '465'. --> Unexpected SMTP server response. Expected: 334, actual: 503, whole response: 503 5.5.1 Error: authentication not enabled
Failure code: cf24"
Thanks to solve this bug !
I'm using the new outlook and since then I can't send emails from an IMAP account that worked on the old one. And apparently, the complaints here are the same and nothing has been resolved. Unfortunate. :(
You need to download the older version. It’s already in your computer. Search.