Sorry, email delivery was unsuccessful.

Hello,

We are not a MYOB customer, however, many of our vendors are, and we are getting reports from several of our vendors since 25/09/2024 that they are unable to deliver invoices from MYOB to our accounts payables team's mailbox.

The rejection emails all follow the below format:

Sorry, email delivery was unsuccessful.

Subject: 

Destination: 

Sent: 

Message: 

Diagnostic-Code: rejected

As a work-around, we have asked the senders to send to another email address in our organisation, for example, a user mailbox for one of the accounts payable team, and they come through without issue, leading me to believe that this one specific email address has been blacklisted by MYOB for some reason.

Similarly, doing a message trace in our email filtering platform and exchange online confirms these rejected emails are not making it our side before they are blocked. Other emails from AccountRight@apps.myob.com come through without incident.

I've attempted to get one of our affected vendors to raise a ticket with MYOB, however they have not confirmed they have done so yet.

I've seen similar historical posts in this forum and it looks like a MYOB staff member was able to resolve, so hoping I can do the same. 

Thanks.