email a/c in new Outlook Win11

[king1]

Thanks for your help kind people. Sadly it is not possible currently to use this software with Slingshot. So until Microsoft deem it worth while to make their crappy software to work I will and others wishing to use STMP will have to wait. To get around the problem I installed, Outlook from my old 2010 office disc, installed instantly with no issues. Funny how the latest is not always the greatest. Thanks again for your help.

Don't know where you got this information from but email settings are all standards based, there is no difference between slingshot and any other pop or imap email provider, and I know the desktop versions of Outlook both support IMAP and POP.

But I would do as wainuitech suggested and try the webmail link he provided for slingshot.  This is important as it verifies you are using the correct login credentials ie username and password.

The only comment I would make about the slingshot settings nowadays pretty much every mail program will try to use SSL or if setting up manually you should specifically select and use SSL and you should always tick the box about authentication required for the outgoing mail SMTP server

If you want to try a different email program then you can't go wrong with Mozilla Thunderbird - free to use, no strings...
https://www.thunderbird.net/en-US/download/