Open Source C# Email Marketing Software

Leverage the email service that customer-first brands trust for reliable inbox delivery at scale. This library allows you to quickly and easily use the Twilio SendGrid Web API v3 via C#. Manage your Twilio SendGrid API Keys by storing them in Environment Variables or in Web. It is a good practice to keep your data and configuration settings separate. This way you can change your Twilio SendGrid API key without changing your code. Also, we strongly advise against storing sensitive data directly in your code. Integrate in minutes with our email API and trust your emails reach the inbox. Build meaningful connections with smart email marketing. Seamlessly integrate with our partners and major platforms. Create emails with HTML code, a drag-and-drop editor, or a combination of both. Engage contacts with approachable, time-saving automation.

A simple but efficient, reliable and fully customizable .NET software that can be used to send mass emails/newsletter to customers in order to increase loyalty and boost sales. Require .NET Framework 4.0.

It is an email sender. This software can send your mass marketing bulk email to unlimited mailing list. The program can send via SMTP server, MAPI, or delivers e-mail directly without ISP's mail system. Also includes flexible address filters and rules.

If you’re fresh and new to email marketing and have just started to build a small list, you probably don’t need a system that looks like the cockpit of a jumbo jet. SpeedyMail can kick-start your campaigns. Whether you are a small business operating out of your home, or a larger company, staying in touch with your clients and customers via email will keep your business foundation strong and boost sales. However, professional email campaigns can become time-consuming, costly and cumbersome. SpeedyMail gives you the power to effortlessly create professional email campaigns, manage your email list and continue to market yourself to others without costly monthly or annual subscription fees to online services.

Tustena CRM is an Enterprise-Class Customer Relationship Management server written in C# for the .NET platform with many advanced features like Companies/Leads/Contacts Manager, Calendaring, Groupware, Email Marketing, Reporting, Orders, Catalogs, etc.

Most Advanced Document Management software,Employee Workflow Management,Email Marketing,HR Management,Active Directory Management from Windows Servers,Business Performance Management and more... This is a Community and Beta Version.The Enterprise version