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Newsletter software with shared subscriber profiles and separate list memberships

Shopify subscriptions with lifecycle journeys, bulk edits and customer self-service

WordPress newsletter campaigns with site-triggered automation workflows

Shopify subscription workflows built around order milestones and customer conditions

Email-focused campaigns with subscriber fields and segmentation

Newsletter campaigns and commerce follow-ups with subscriber or prepaid access

Newsletter publishing with separate web, email and audience settings

Publish newsletters on the web and in subscribers' inboxes

Visual newsletters with forms, landing pages and subscriber workflows

Store email campaigns and automations for subscriber and purchase follow-ups

Hosting, analytics and premium podcast options

Turns any subject into a structured course with five tiers and hands-on labs.

Draw publication figures with geometric snapping and LaTeX text

Newsletters and follow-ups with tracked-link corrections after sending

Publisher comment communities with article-level moderation and newsroom identities

Manage subscription plans, customer changes and recurring payment collection

Email campaigns with unlimited contacts and monthly or prepaid sends

Commerce email automation with explicit segment-entry and repeat-entry rules

Newsletters, RSS updates and automated journeys priced by sending volume

Design-focused email with polls, click triggers and creator checkout

Self-hosted newsletters with SQL segments and configurable SMTP queues

Merchant subscription management with a branded, self-service order portal

A health publication with topic collections and practical question-led explainers

Search Crossref’s deposited scholarly metadata and retrieve records by DOI or other publication identifiers.