Undelivered Mail Returned to Sender (2024.05.03)
This is the mail system at host mta653.syd.oss-core.net.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
mailstore04.service.sydnmtc.int.oss-core.com[172.27.72.114] said: 550 5.1.1
to RCPT TO command)