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

Hi,

I have seen this issue in Outlook for Mac (New interface) with IMAP accounts added using Microsoft Sync technology. To know if your IMAP account is added using 'Microsoft Sync technology', navigate to Tools > Accounts > Select the affected account. If you see 'Microsoft Sync technology' listed at the lower side of the server settings it is cloud enabled. To fix this, you need to remove this account and re-add it as an IMAP direct sync type.

Navigate to Tools > Accounts > Select the affected account > click on the '-' sign to remove the account. Once done, click on the '+' icon > Add an Account > enter your email address > click on 'Continue'. Once done, you will remain in the same window if Outlook Auto-discover cannot find your email server details and you should see an option 'Choose Provider'. Click on the same and select IMAP. Now on the next window, do not click on 'Continue'. You need to click on 'Sync Directly with IMAP'.

Now you get a window to add the server settings for the account.

Email address. Your compete email address

Username : Your compete email address

Password : Your email password

IMAP incoming server and port number : as per your email service provider has provided

*You may leave the SMTP username and password blank

SMTP Outgoing server : as per your email service provider has provided

I have solved the problem !

New Outlook only works with Server 'smtps.numericable.fr' which is mandatory (with a "S")

It was not clear at all at SFR/Numericable since 'smtp.numericable.fr' is used for Courier W10 for a long time

Sometimes, they say one or the other is indifferent. Yes but for Courier W10 only in fact !!!!!!!!!!!!!!!!!!!!!!!

The 2 servers are in fact not configured, the same, and one of the 2 does not support New Outlook.

Just a ascertainment

What does this mean?

The SMTP server you use is not necessarily the SMTP server that other webmail services use so your success will not work for anyone using a different service.

EDIT (AUGUST 9, 2024): I HAVE NOW GIVEN UP COMPLETELY ON EVER USING MICROSOFT'S OUTLOOK CLIENT FOR EMAIL. AFTER SEVERAL TICKETS WITH THEM THROUGH THEIR ON-LINE HELP WITHIN THE APP AND REPEATED RECOMMENDATIONS FOR THEM TO DO THE SAME DAMN THING OVER AND OVER WITH ABSOLUTELY NO SUCCESS AND THE FACT THAT THEY DO NOT FIX IT AND THIS THREAD CONTINUES TO LET THEM KNOW THEIR PRODUCT SUCKS, I'M DONE WITH IT. I WILL USE MY PRIMARY EMAIL THROUGH THEIR WEBMAIL EVEN THOUGH I'M NOT THAT FOND OF USING WEBMAIL, BUT I AM DONE, DONE, DONE WITH MICROSUCKS. I WILL NEVER, EVER BUY THEIR 365 PROGRAM SUBSCRIPTION JUST TO USE INCOMPETENT CUSTOMER SERVICE IN A REALTIME FORMAT OR FOR ACCESS TO WORD AND EXCEL. I'M RETIRED AND I DON'T NEED THEIR C.R.A.P.

One of the things Microsoft NON-support tells people to do is to remove their account, close the program, wait 15 minutes, then try to re-add the account and be sure to use Passwords and server protocols for SMTP and IMAP in the advanced settings. Marc evidently discovered something with the alpha-numeric specifics for his server and found some success. For me... NEW OUTLOOK still is non-functional despite months of indirect processing of customer service tickets. I've removed and readded my account several times and I've now told Microsoft to stuff it. The definition of STUPIDITY is doing the same thing over and over and expecting a different result.