Undelivered Mail Returned to Sender

This is the Postfix program at host mx.datapro.co.za.

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 Postfix program

[email protected]: unknown user: “[email protected]