I'm running Home v12.2. I've added two outlook accounts: IMAP works perfectly, SMTP does not. All messages I send just sit in the outbox. Initially the software asks me to re-insert my password (despite the setup including my password) and then returns the 'Client not authenticated to send mail' error.
The accounts are set up correctly. I can find no answer in these forums and have had no response from support. Does anybody have any thoughts?

FYI I have various Gmail accounts, all of which work perfectly well with TB; the outlook accounts all work as they should using the Outlook software at work and Fairemail on my mobile.