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Transactional Email Software with Unsubscribe Database (2026) - Page 2

Last updated: April 2026

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33 software options

SendPost logo

Cloud-based email verification platform.

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SendPost provides an Email API and SMTP relay for developers, software businesses, and ESPs with tools, expertise, and support needed to reliably deliver, measure and optimize transactional emails.

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Enabler logo

Enterprise-level email marketing software

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Enabler is an enterprise-level email marketing software which supports email consultancy, email campaign management, and email template design services

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CRM in Cloud logo

Cloud-based software for managing sales and marketing

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CRM in Cloud is a cloud-based customer relationship management software designed for small and medium-sized businesses. It provides a 360-degree view of your business and customer network, allowing you to manage email, leads, marketing activities, and monitoring.

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EmailDelivery.com logo

Self-hosted email marketing for enterprise & small business.

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EmailDelivery.com is a self-hosted email marketing platform that comes with a proprietary MTA included for sending over your own IP addresses, and also supports SMTP Relay and APIs such as Amazon SES, Mailgun, and Sparkpost.

White label ready for agencies & resellers

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Mailsoftly logo

Send personalized emails and get higher response rates!

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Send important emails—like receipts, alerts, and password resets—fast, reliably, and without headaches.

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Cheetah Digital logo

Enterprise Multi-channel Campaign Management

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With Cheetah Digital, no list is too big, no data too complex. Put your data to use by letting it drive the action to better engage with your audience and cultivate their loyalty.

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Everlytic logo

Bulk communication platform

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Empower your business software to automatically trigger and personalize business-critical emails and text messages to customers when they transact with your organization – all via a restful API or SMTP relay.

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Aument logo

Always on email + SMS marketing for Shopify stores

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For ecommerce that want to grab attention, Aument holds it. Always-on email and SMS marketing.

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