Gmass is an email marketing plugin for Gmail. Gmass.co offers a great Gmail add-on, however the experience may lack of simplicity and the price is overall quite expensive. A Gmass footer is included by default in the free version of Gmass, which may denature your email campaigns.

SendX is an Intuitive, Affordable & Feature-rich Email Marketing Software for marketers & business owners. SendX prides itself on enabling marketers with one of the simplest UIs in the industry. SendX provides unlimited email sends with every plan, powerful automation capabilities, 24x7 live support, best of breed email deliverability. 3000+ companies worldwide trust SendX for their Email Marketing. **Start with 14 days free trial (no credit card required). **Pricing starts at $7.49/month

NewZapp Communications has over 20 years of Internal and External Marketing experience. Trusted by Russell Group Universities, Local, District Councils, and Central Government, NHS, and Network Rail. UK based support and servers, GDPR, and ISO 27001 compliance. Create branded responsive email campaigns that look good everywhere. Award-winning email reporting and engagement analytics.

Moosend is an email marketing solution that comes with a series of advanced tools for sending great newsletter, manage contact lists and monitor the campaign performances.

GetResponse is a complete online marketing solution. It provides turnkey newsletter publishing and hosting features, as well as unlimited follow-up autoresponders, landing pages, webinars, marketing automation, and CRM to deliver information to your contacts and convert them to paying customers. Through responsible and fully automated list hygiene, anti-spam practices, and established relationships with major Internet service providers and email service providers, GetResponse prides itself on the highest possible email deliverability to ensure that your messages get through to your prospective customers.

iContact is a very popular email marketing / marketing automation platform. iContact has a very intuitive design and layout, making it very easy for businesses to design and deploy their own email campaigns. iContact comes with two different products; their basic email marketing platform, and their Pro Automation version of the product. 

FunnelBake is a fully automated and personalized Email Outreaching tool that can help you generate thousands of potential customers every month for your business.

Drive your business with email marketing and automation. Taximail is a powerful and reliable digital marketing and automation platform for your business.

MailerLite is an email marketing software designed to help people of all skill levels create professional and personalized marketing campaigns that keep them engaged with their audience. Their tools include an intuitive drag& drop editor, landing page builder, pop-ups, automations, templates, campaign reports, integrations, and more. All your work is supported 24/7 by their exceptional customer support.

ConvertKit is an email marketing automation and lead generation platform designed for content creators. As an example, course creators, YouTubers, podcasters, bloggers and other business owners who create and regularly share their content. The platform provides automated email marketing with drag-n-drop email sequences, workflow automation rules, landing page templates, custom opt-in forms, and more.