Upcado - Super easy to use Messenger Marketing tool for your business
HubSpot Free Email Marketing - Powerful drag and drop email marketing in the HubSpot CRM
Job Promotion Course - Step-by-step promotion guide in a free 7-day email course
Elevatr Email Marketing Automation - Fast and easy email marketing software
Email University - A free course to help you become a better marketer
SaaS Email Marketing Handbook - Double Your MRR With Email Marketing