The Simple Postcard - Text a photo to mail it as a postcard
GMass - GMass allows you to easily schedule emails, send out mass emails and mail merge campaigns and more with Gmail! Click here to learn about more features!
Mailjoy - Delightfully easy direct mail marketing. A DIY direct mail tool created for marketing and growth teams. Design, mail & track personalized direct mail postcards and letters. Digital marketers use Mailjoy to send data-driven mail campaigns.
HubSpot Free Email Marketing - Powerful drag and drop email marketing in the HubSpot CRM
Felt for iPhone - Handwritten cards for the modern world
Quokka (formerly Kryptowire) - The gold standard in SAST, MAST, IAST, and more!