Anthony Chater wrote:

Perhaps I did not make this clear ... I am attmepting to filter OUTGOING
emails and I want to identify an email address (in this case
an alias on one of my configured accounts).

No you did not make yourself clear. You said, "I am using Outlook 2003 and
would like to filter mails emanating from a specific address to a folder."
I interpreted that to mean you wanted to sort incoming mail by sender to
various folders.

I have indeed chosen "Start from a blank rule" - and then chosen
"Check messages after sending".
In the next dialog there is NO option to filter on my sending email
.... that's what I find a bit primitive about Outlook .... unless I
am missing something!!

Since YOU control the sending address, YOU know which folder should contain
the message when sent. You can either choose it with ViewOptions before
sending or use a script to ask you for the folder, as in the following:
http://www.outlookcode.com/d/code/setsavefolder.htm
--
Brian Tillman [MVP-Outlook]