How to reply to Buddypress notifications? [closed]

Currently, when I receive notifications from Buddypress, I have to log in the site to post a comment on an event, or a reply to a message.

Is there a way to reply directly in the MUA ? My idea was to generate a UUID that would be used as a reply-to field ,e.g. [email protected] , find the related event when the message is received using postfix content filter, parse the email body to extract the reply, and to insert the comment into the database.

Is this secure? Can it be done without having high privileges on the server ?

Check out this plugin. Maybe it does what you need, maybe you can dive in the code to adapt it to your needs.
http://commonsinabox.org/documentation/plugins/buddypress-reply-by-email
https://github.com/r-a-y/bp-reply-by-email