I am not sure if I understand what you are asking for.
Maybe this is what you want https://www.mantisbt.org/wiki/doku.php/mantisbt:emailreporting

Thanks very much.
Yes. it seems the plugin :emailreporting

But i am so sad that i cannot select project form 'Plugin-CsvImport' to others.
so i cannot view other issues,
i cannot learn form other issues about how to configure this plugin.

I donot know why cannot change project,
because I also use another Mantis,
but we can change project on another Mantis.

cannot select project form 'Plugin-CsvImport' to others

Confuses me.
The current issue is created for project mantisbt, so you are obviously able to change from Plugin - CsvImport to it.

Amiz,

This is not a bug or feature request for MantisBT (you are asking for help on how to configure the EmailReporting plugin). I am therefore resolving this issue as "no change required".

Please use the forums to get support on customizing and using MantisBT (refer to http://www.mantisbt.org/support.php for links and further details).

This is the best place to ask for support of the plugin http://www.mantisbt.org/forums/viewforum.php?f=13