I don't receive any return receipt

Hi, i have a problem receiving return receipt message.

A user of my organization, when try to send return receipt confirmation with her mails, cannot receive any message about their delivery.

Do u know why?

Subject: I don’t receive any return receipt

Hi,

Are the mails sent internal or out via smtp?

//Kjeld

Subject: RE: I don’t receive any return receipt

In any case.