Flashmail is an email marketing company that can reach over 50 million opted-in users. It has a network of inventories offering diverse targeting options. The experienced team has executed many email campaigns across industries, with expertise in optimizing budgets. Key features include a large opted-in user base, inventories across social media and e-commerce, and experience in industries like jobs, education, and e-commerce. The document provides targeting parameters like location, age, gender, and occupation breakdowns, as well as dos and don'ts for email campaigns.