Ok so I have switched back to classic - no change and now I have uninstalled the new outlook and still no joy - so any other suggestions would be greatly appreciated.
After following the ChatGPT instructions, I realised I was still using the Classic version of Outlook—the toggle for "Try the New Outlook" was already set to off.
I then launched MYOB as an administrator from the Start menu and attempted to send an email from MYOB to Outlook. Initially, I believed this was successful, as running it with administrator privileges prevented the original error message from appearing. Instead, I received the attached prompt asking me to allow each email individually. I clicked "Allow" for two emails, assuming they were sent successfully.
However, upon opening Outlook, I found no emails in the Outbox (which is expected, as we use manual send/receive). I also checked the Sent Items folder in case the emails were automatically sent, but they were not there either.
I have since logged out and back into MYOB (this time as a standard user, not an administrator), and I am now encountering the original error again: "Email not sent – Unsupported Outlook Version."
