issue with sending email in outlook giving following error code : cf24

Anonymous
2024-02-17T12:01:06+00:00

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

Outlook | Windows | New Outlook for Windows | For business

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.

0 comments No comments

85 answers

Sort by: Most helpful
  1. Anonymous
    2024-04-30T16:49:18+00:00

    I am experiencing the same error code. My email just keeps spinning now.

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments No comments
  2. Anonymous
    2024-04-30T14:53:36+00:00

    I have the same issue on a Mac...

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments No comments
  3. Anonymous
    2024-04-29T17:32:05+00:00

    You would think by now they would have fixed it...but no apparently not!

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments No comments
  4. Anonymous
    2024-03-02T05:05:56+00:00

    At 11:50pm tested again and didn't work. Oh well got excited there for a hot minute. I guess the wait continues.

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments No comments
  5. Anonymous
    2024-02-29T16:48:03+00:00

    Still studying the problem:

    The classic mail tool has always worked for me, and continues to work on my old Win 10 PC to my twc.mail.com account. My new Win 11 PC also has the classic mail app (it doesn't declare itself as Outlook) and it will not send or receive from my twc.mail.com account (their is no errors reported when I try to send or sync my incoming email).

    When I try switching to New Outlook things are a little better, my twc.mail.com account will receive , but it will not send (Failure CF24 code is always reported).

    I notice that the email account settings are a bit suspicious, I can inspect them through the classic mail app on my new win 11 pc and the password has too many dots. (Is something readjusting my account entries?)

    Any guidance or thoughts on how I might escalate this problem to Microsoft would be appreciated. My email service provider says it is not their issue, I have to agree given that the app still works on my old PC and also my web mails.

    I tried Microsoft's Assistant app and selected Outlook. This App tells me that I don't have Outlook installed and then connects me to a web site that is trying to get me onto Office 365.

    Thank You all

    Bob H

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments No comments