MailChimp - MailChimp is the best way to design, send, and share email newsletters.
M+ 1m - Download and install the M+ 1m free font family by M+ Fonts as well as test-drive and see a complete character set.
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
Inconsolata - OSX, Productivity, Design, Typography, powerline, and Fonts
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.
Bitstream Vera Sans Mono - Bitstream Vera Sans Mono Font | dafont.com