Twilio SendGrid
twilio.comEmail API and SMTP delivery with grouped unsubscribe management
Email API and SMTP delivery with grouped unsubscribe management
Email-list validation with detailed status and sub-status classifications
Manage each product variant's stock in a self-hosted store
Voice AI platform with speech-to-text, text-to-speech, and voice agent APIs.
Open-source HR software with self-hosted and managed deployment options
AI app for skin self-exams and tracking
Connect on-site signup widgets with contact segments and email workflows
Ecommerce email workflows combining store data, SMS and push
Triggered email journeys with forms and flexible sending credits
Multi-account email marketing with shared designs and separate campaign data
Small-business email with signup forms and welcome automation
AI personal assistant for ADHDers that connects email, notes, tasks and calendar.
Email automation triggered by visits to selected website pages
Configure product stock, warehouse reservations and low-stock behavior
Store email campaigns and automations for subscriber and purchase follow-ups
Create a hosted wiki site for publishing and collaboratively maintaining documents.
Self-hosted upload buckets with resumable transfers
Add email encryption while keeping an existing address
Self-hosted discussion forums with approval rules for users or whole forums
A self-hosted ebook library with automated processing
Hosted email with plan-specific PGP and metadata controls
Healthcare-oriented email with automatic encryption and integration hooks