I'll check that. Sorry about omitting the version - Outlook 2003.

Outlook Address Book service is installed and working, so I tried to document
more precisely what is happening.

** "REPLY TO" Problem **

Case 1: If the incoming email show the "from" field as <name>@<domain>, then
"reply to" works because <name>@<domain> is put into the "to" field of the
reply message.

Case 2: If the incoming email shows the "from" field as a person's name
(like "Steve Smith") AND that person is already in my contact list, then
"reply to" works.

Case 3: However, if the incoming email shows the "from" field as a person's
name (like "Steve Smith") and that person is NOT already in my contact list
then "reply to" does not work because "Steve Smith" goes into the "to" field
and is not resolved into an email address. (The "check names" box pops up
when I hit send).

What's interesting about this case is that in the reply message area the
system includes the original email text plus the header at the top:

From: Steve Smith [mailto:stevesmith@<domain>]

So, it "knows" the sender's address. It just doesn't use it.

*** ADDING SENDER TO CONTACTS problem ***

Sometimes, the right click on the "from" name shows the correct context
choices and sometimes it does not. I can't figure out what the common
denominator is. For example, notifyMS@microsoft.com shows it fine.
MWedua@aol.com does not. Email from some people already on my contacts list
works, email from others does not.

*** Creating new email problem ***

This seems to be related to the first two problems. Sometimes, when I type a
name from my contact list in the "to" field, it doesn't "resolve" into a
valid email address unless I hit <ctrl K> and then pick it from the list.
Then, the next time it will work fine.

Shouldn't these resolve automatically?

Thanks