When we receive a bounce-mail from our provider the sender field is empty.
This is because (they say) to prevent bounce-loops.
I can see the mails in our spam-box (gwava), but when they are released the message is not delivered in the users mailbox.
I have checked Gwava, and the message is send to Groupwise.

A. Is a empty "from" field according to the standard.
B. Where to these mails go ?

Thanks in advance

Jan Hoetink
Isendoorn College
Warnsveld Holland