[AccessD] Access + Pegasus

I have some slick email routines that work with Access, but until today they
have assumed Outlook and its object model. Suddenly I have to assume
Pegasus, about which I know nothing. I'll search the list for references in
a moment, but right now I don't know a thing about it. Is it easy? Tough?
What are the advantages of Pegasus as opposed to Outlook? Should I consider
switching my own email client?

TIA,
Arthur