By default, you can post to your personal feed through e-mail. Also, users can reply through e-mail to e-mail notifications they receive for your personal feed.
If you want to restrict your ability to post to your personal feed through e-mail, and also restrict users from replying to e-mail notifications they receive for your personal feed, you can change this setting.
From any page in Vibe, click in the upper right corner of the Vibe interface.
Click .
In the section, select .
Click .