MYOB AR - Email not sent - Unsupported Outlook Version - asking to switch to Outlook Classic

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."

ChrissyK1 
I too am having the same issue - I am with classic outlook and can still not get emails out. Online is not an option for us so I am hoping the issue is resolved soon.  

I too am continuing to get this message.  With the way our business is run, I need to operate from the desktop version and send emails through outlook so hope this is resolved soon.

I am using the Classic outlook (never used the new version)

SupportNoteGuy​ is there any further information on this "Email not sent – Unsupported Outlook Version." issue?

Caitlin_G​ Leonie_H​ ChrissyK1​ if you are receiving this message but you actually use Outlook classic, as part of a desktop installation of Office 365, then possibly running a "quick repair" of Office may help, or a full "Online repair" (which will take longer).

Mike_James​ Thank you - that appears to have resolved it.  Very much appreciated.

Leonie_H​ , good news! Have you at some stage enabled the new Outlook and then reverted to Classic?

No I've always used classic, however I use New Outlook for personal emails so do have that on my laptop.  The only time I enabled it was at the suggestion of an earlier comment which said to try toggling to New and then reverting back to classic.

OK, one or other of those situations may have confused the Office Link, which the repair corrected.

Thank you some much Mike this has resolved my issue with outlook.

We are now having problems with MYOB's mandatory verification process that has automatically pushed us into their online payments system. Sure we can switch it off but any existing invoices need to be switched off manually. All of this so MYOB can charge our customers a surcharge and take it out of our account before we even get paid - Not happy Jan

ChrissyK1​ , I'm glad this Outlook issue is fixed for you. It's unfortunate that disabling online payments does not apply to existing invoices. I'm not aware of any method of doing that in bulk.