Hi marcus_a,
Thank you for your response.
I understand that you're experiencing issues with your emails being rejected and not reaching the recipient's mailbox. This can be frustrating, and I'm here to assist you.
Could you please confirm if you've tried to send emails to your personal mail to see if it'll work fine? If so, please confirm from the recipient's end to whitelist accountright.myob.com from spam. Additionally, ensure the recipient's email address is correct. A rejected code generally indicates that the email is being rejected by the recipient's end or that the recipient's email is incorrect.
Please let me know how you get along and if you require further assistance.
Cheers,
Princess