can I get default email client in command line?

[Alvin]

On Tuesday 24 November 2009 15:29:45 Donatas G. wrote:
> On 2009 m. Lapkritis 24 d., antradienis 15:56:02 Alvin wrote:
> > On Tuesday 24 November 2009 12:59:40 Donatas G. wrote:
> > > I am trying to write a Dolphin service menu that would allow to attach
> > > a file to an email, but with a twist: I want the service menu to be
> > > universal enough to guess which email program the user is using.
> > >
> > > For that I need to find out how to get the name of the default email
> > >  program via shell.
> > >
> > > Any ideas? Is there any dbus call I could make?
> > >
> > > If it were just kmail, the desktop file contents would look like this:
> > >
> > > [...]
> > > If I could get the default email program by executing some program in
> > >  command line I could proceed...
> >
> > Take a look at xdg-email (in xdg-utils).
> 
> OK, thank you, I see /usr/bin/xdg-email uses kreadconfig tool, but the
>  script is evidently wrong; upon trying to use it I get an error, and the
>  particular line
> 
> kreadconfig --file emaildefaults --group PROFILE_Default --key EmailClient
> 
> produces empty output.
> And I could find no clues online on how to use kreadconfig in KDE 4...
> I will have to dig deeper.

kreadconfig also gives empty output here.

I just tried xdg-email and it doesn't work. It says to install kmailservice. 
You need to install kdelibs4c2a for that.

After installation, xdg-email works:
$ xdg-email --subject "test" --body "test" kubuntu-users at lists.ubuntu.com