AppleScript - Expected end of line but found identifier when opening email program - email

Question

I'm working on building a small plugin in AppleScript that will find the default mail app and open that up and paste in a subject and body.
I get the error "Expected end of line but found identifier."
on run
set mailClient to getDefaultMailClient() -- store application id
tell application id mailClient
set msg to make new outgoing message with properties {subject:"subject here", visible:true}
tell msg to make new to recipient with properties {address:"email.com"}
end tell
end run
on getDefaultMailClient()
set prefPath to (path to preferences as text) & "com.apple.LaunchServices.plist"
tell application "System Events"
try
value of property list item "LSHandlerRoleAll" of ¬
(first property list item of property list item "LSHandlers" of ¬
property list file prefPath whose value of property list items ¬
contains "mailto")
on error
"com.apple.mail"
end try
end tell
end getDefaultMailClient
This works fine when it opens up the program Mail on my computer but I want it to work for Entourage and any other email program for OSX.
Any help is much appreciated.

Answer 1

Rather than anticipate various clients and create specific code for them, you can take advantage of the abstraction the mailto: URL scheme provides - it will open a new email form in the default email client:
on newEmailForm(addr, subj, body)
do shell script "open " & ¬
quoted form of ("mailto:" & addr & "?subject=" & subj & "&body=" & body)
end newEmailForm
# Sample invocation:
my newEmailForm("somebody#some.net", "This is my subject line", "")
Note that the above uses do shell script with open rather than open location - the former conveniently automatically encodes the strings for inclusion in a URI, whereas the latter requires you to pass an already-encoded string.

Answer 2

You can do this by writing commands for each client.
if mailClient = "com.apple.mail" then
tell application "Mail"
--insert your code
end tell
else if mailClient = "com.something.else" then
tell application "something.else"
--insert your code
end tell
end if