I'm trying to retrieve the body of any e-mail that triggers my AppleScript. I have a test message saved, and when I click "Apply Rules", I get this error:
"Can't make <> of <> id 9574 of <> "INBOX" of <> "Gmail" into type <>."
EDIT: Here's the relevant portion of the code:
using terms from application "Mail"
on perform mail action with messages messageList for rule aRule
tell application "Mail"
repeat with thisMessage in messageList
say content of thisMessage
on error errMsg
display alert errMsg
end perform mail action with messages
end using terms from