Substack

Newsletter platform with referral and ad network features.

Lightweight newsletter tool written in Markdown.

Korean platform for publishing newsletters with paid subscriptions.

Open-source publishing tool for a blog plus paid membership newsletter.

Well-known email marketing tool for campaigns and automation.

Formerly Sendinblue; combines email, SMS and a CRM.

E-commerce email tool that segments on store purchase data.

Simple, affordable email marketing tool.

Formerly ConvertKit; email and automation built for creators.

Email and CRM tool strong at branching automation workflows.

Email and event marketing aimed at small businesses.

Email marketing with landing pages and webinars added.

Long-running email service known for autoresponders.

Email and SMS automation for online stores.

E-commerce automation that sends email based on customer behaviour.

Email campaign tool with polished design templates.

Korean email service for building and sending newsletters.

Email sending API built for developers.

Service focused on transactional email such as receipts and confirmations.

Email infrastructure with sending API, inbound routing and validation.

AWS's pay-as-you-go bulk email sending service.