Alain Rialland Alain wrote:

Sorry for my muddle. I ahve just loaded MS Outlook 2007. Previously
used Outlook 2003. I had Norton Internet Security 2007 plus add-in
for contolling Anti-Spam.

The problem is that a number of my emails sent (some by distribution
list) have not been received. Likewise a number of emails sent have
not been received for the current email addresses.

One way of knowing if communication has been received is to require
confirmation of reciept.

Is it possible that the problem is incompatibility of Norton's add-in
covering anti-spam with Outlook 2007. I assumed that I have received
updates from Norton on a regular basis so that both programmes are in
sync.

In my opinion, Symantec products have never played well with Outlook. You
could certainly test by disabling Norton AntiSpam. You could also enable
diagnostic logging to see what's happening during send/receive.
http://support.microsoft.com/kb/831053/en-us
--
Brian Tillman