[Evolution-hackers] Questions about Evolution mail/composer

[Joey Shen <joey shen sun com>]

Hi all,
I have two questions about Evolution mail.

1. There is a binary named evolution-launch-composer in the tools 
directory of Evo1.2 and later. It calls interface of Evolution-Composer 
to launch the message-composer dialog outside the mailer, and works 
nicely for Evo1.2. But it dosen't seem to be working with Evo1.3 any 
more. What's going on? and would this function continue to be supported 
when Evo1.4 is offical released. If the answer is no, how can I launch 
the composer dialog outside the mailer, could it still be done via Bonobo?
2. There seems to be no way to make a mailer(i.e. evolution mailer or 
Mozilla mailer) be the default one on Linux platform. And there seems to 
be no entry as "mail" in Gconf database, either. I wonder if there is 
any way to know which mailer is the one being used by users?

Any ideas and hints would be appreciated.
Thanks in advance!
-JoeyS