Rated 4 out of 5 stars
I really like the plug-in, but I'm wondering why a certain feature is missing:
When I click on a mail address within an email (or in the external web browser as well), a new message opens with some default sender address. Here it would be important to use the same address which would be used when clicking reply. At least, some standard sender address (definable in the plug-in settings!) would be needed which is used when some email link is clicked to compose a new message.
Another "nice-to-have" feature would be to somehow apply the detection mechanism as well to manually entered receiver addresses. E.g., when I start writing a mail to my boss (identified by the domain of his mail address), the sender address should not be my private address.