Senthil K.

Email marketing is directly marketing a commercial message to a group of people using electronic mail email. In its broadest sense, every email sent to a potential or current customer could be considered email marketing. It usually involves using email to send ads, request business, or solicit wikipedia.org

Simple Mail Transfer Protocol (SMTP) is an Internet standard for electronic mail (e-mail) transmission across Internet Protocol (IP) networks. wikipedia.org

Adobe Marketing Cloud (previously known as Adobe Digital Marketing Suite) is a set of social marketing, media optimization, digital analytics, testing and targeting, and web experience management software sold by Adobe Systems Incorporated.

Digital marketing is an umbrella term for the marketing of products or services using digital technologies, mainly on the Internet, but also including mobile phones, display advertising, and any other digital medium. wikipedia.org

Zoho CRM offers customer relationship management functionality, procurement, inventory, and some accounting functions from the realm of ERP. wikipedia.org

Constant Contact, Inc. is an online marketing tool offering email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools, primarily to small businesses, nonprofit organizations, and membership associations. wikipedia.org