Jan jan@hotmail wrote:

Neither of us has any AV programs installed and it looks like I am
the only one to get these blank responses (none of his other contacts
have mentioned receiving similar blank messages). Just to make
things clear I get the blank response just a few seconds after I send
the mail even if he has not replied to my message or even seen the
message if he's not at his desk. If he replies to the mail, I get
the blank message immediately after I send the mail and then his
reply a little after he sends it.

Off-hand, I can't think of what that might be.
--
Brian Tillman [MVP-Outlook]