I'm having problem in sending email to one of my recipient, he can send and receive with any other system but somehow only my email address got blocked or rejected ?
See the following error message:
Can anyone help me please ?
Your message wasn't delivered because of security policies. Microsoft Exchange will not try to redeliver this message for you. Please provide the following diagnostic text to your system administrator.
The following organization rejected your message: mailin1.pacific.net.au.
mailin1.pacific.net.au #<mailin1.pacific.net.au #4.7.1 smtp; 421 4.7.1 <email@example.com>: Recipient address rejected: Backup mail exchanger not provided here> #SMTP#