I'm trying to setup my e-mail interface and I get the following message when I try to select Lotus Notes as my interface: "Lotus Notes interface cannot be installed. Another Notes extension manager is already installed!" What do I need to do in order to be able to use Lotus Notes for sending e-mail notifications?

Which Notes version do you have?
Do you have/use Notes MAPI client?
Does your Notes server support SMTP?

: I'm trying to setup my e-mail interface and I get the following message when
: I try to select Lotus Notes as my interface: "Lotus Notes interface
: cannot be installed. Another Notes extension manager is already
: installed!" What do I need to do in order to be able to use Lotus
: Notes for sending e-mail notifications?