Substack
substack.comPublish newsletters on the web and in subscribers' inboxes
Publish newsletters on the web and in subscribers' inboxes
Run containerized batch tasks on demand or on a schedule without managing execution servers.
Build websites, online stores, landing pages, and blogs without code.
Email campaigns with unlimited contacts and monthly or prepaid sends
Retail email journeys based on purchases and customer data
Newsletter publishing with contact-based subscriptions and credits for infrequent sends
Commerce email automation with explicit segment-entry and repeat-entry rules
Email journeys that branch after a send, view or click
Customer email flows that respond to signups and product activity
Account-based expense planning with tags, images and scheduled entries
Blend marketing sources into client dashboards and scheduled branded reports.
Deploy a repository or image as a web service, worker, scheduled job, or static site.
Use scheduled GitHub Actions to monitor endpoints, record response-time history, and publish a status page.
Text and voice email with sender-controlled access options
Use email-based groups and channels to bring outside participants into team discussions.
Website capture campaigns with field rules and email delivery checks
Email design, contact segments and date-based automation
Collaborative email design alongside SMTP and API delivery
Transactional email with domain-level suppression controls and activity logs
Email delivery and stream-level monitoring for teams managing multiple senders
Content-to-newsletter automation that builds issues inside an existing email platform
Email validation with a separate catch-all review stage and shared usage credits
Email verification with separate delivery status, reason and domain or account flags
Transactional email sending and inbound messages forwarded as JSON