Comment 2 for bug 351577

If libpst-dev is not available, the Evolution-plugins package will be built *without* the pst-import plugin (which is the new plugin supporting the Outlook PST conversion. There is no option to build stand-alone the plugin.

For installation, libpst1 will be a dependency only for the evolution-plugins binary package.

As such, yes, it is needed in main.

For maintainers: I can be the designated maintainer, since I have been involved with upstream on that since the beginning; nevertheless, I am not either an official Ubuntu developer, nor an Ubuntu member (although I am applying for it). Even though Seb has not really stated it, he is aware of the work; I believe overall backing will, then, also be available via the ubuntu-desktop team.

I can go through a code review if needed, but I am unsure if you would accept it.