How can you be sure about anything you read on the internet? :)
Anyway... if you can't install software, then the answer is that you need to
remove each one individually. Outlook does not offer a way to do it on
multiple messages. You could write a VBA macro (assuming you are allowed to
by your IT dept), but as trusting as you are, you'd need to write it
yourself, without help as you can't trust what anyone says on the
internet...
Not sure if someone is an MVP? Check the list at
https://mvp.support.microsoft.com/communities/mvp.aspx. While not all mvps
are listed here, the vast majority are.
(For others who can install 3rd party tools... while its prudent to be wary
of some sites and software, you can trust well known developers such as
Mapilab and Sperry software... and always, always download from the
developers own site - not from a 3rd party. Pirated software might be cheap,
but it can also be infected with trojans... the cost of recovering from
trojans can cost more than the software would have. :) Google is your
friend... and if you aren't sure about someone - google is your friend.
Generally you can trust the advice of anyone who has longevity here and on
the internet).
