rtvs wrote:

When messages are received, our logo - which is part of the email
signature - shows up as an attachment. This defeats the purpose of
including it.
We also receive pictures from others as attachments instead of being
embedded in the message section of the email.

In what format are you sending the messages? Did you embed the logo in the
signature? See if something here helps:
http://www.howto-outlook.com/howto/signatures.htm
--
Brian Tillman [MVP-Outlook]