Infoga is a tool for gathering e-mail accounts information from different public sources (search engines, pgp key servers). Is a really simple tool, but very effective for the early stages of a penetration test or just to know the visibility of your company in the Internet.
git clone https://github.com/m4ll0k/Infoga.git
cd Infoga
pip install -r requires.txt
python infoga.py