Apps with 'SMTP integration' feature

Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.

Disroot is a platform providing online services based on principles of freedom, privacy, federation and decentralization.

Zoho Mail is a webmail service built with the needs of a modern business in mind.

The Bat! is a secure email client software, built to protect your correspondence against third-parties. .

hMailServer is a free e-mail server for Microsoft Windows. Its used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world.

SendPulse maximizes the core metric of e-mail marketing - newsletter open rate - atomatically.

Mailjet is an email service provider that works with brands like Microsoft, Etsy, Product Hunt, Toast to help create, send, and optimize marketing and transactional emails.

SurveyLab is online survey software for any kind and size of business. Whether you are in marketing research, customer experience or employee insights this is tool you need to have.

Interlink is a Mail, RSS, and Newsgroups client based on Mozilla-sourced Community Code and built on the Unified XUL Platform.

Free open source Zendesk & Help Scout alternative: help desk, shared mailbox, email management and analytics. FreeScout is a pure PHP7+MySQL application which can be easily deployed even on a shared hosting.

Platformly is a powerful yet easy to use business management and marketing automation tool for busy business owners who are focused on growth.

Email tracking | Email Scheduling | Reply Tracking | Mail Merge | Document / Attachment tracking | Gmail Chrome Extension | Outlook Addon.

Reliable Email API and Cloud-based SMTP service. Get the highest deliverability and detailed analytics of the e-mail messages sent from your system or application.

Historically, Icedove was a re-branding of Thunderbird by the Debian project, with minimal modifications, in order to resolve branding disputes.

With MailingBoss New Lifetime Account, You Can Capture and Send Unlimited Emails with Superior Delivery and Open Rates