On Sep 3, 2:41 pm, F.H. Muffman wrote:

You were BCC'd on those messages. Sender sent the message to
himself and BCC'd you.

What about the ones received that say Undisclosed in the To box?

Same thing without the 'Sent the message to himself' part. (ie,
the To line was blank)

Tried it but I do not get a message showing To: undisclosed
recipients

It depends on the sending client and mail servers, IIRC. What is it
you want to do?

Send emails with undisclosed redipients in the to line

Just leave it blank and let whatever happens happen.

Or do a mail merge so people get their own address in the To line.

Ya I could do that but I was looking for an answer on how get it to do
the Undisclosed Recipient thing

Create a contact, name it Undisclosed Recipients and give it an email address
of and put that in the To line. You'll get a NDR, and not
all clients will show the display name, but, that might work for you.

--
f.h.
Microsoft Outlook MVP