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Trigger personalized postcards, letters, and other physical mail from software.

Build Telegram bots with an HTTP API for sending messages and receiving updates.

Connect one application to email accounts across major providers through a normalized API and webhook workflow.

Trace and investigate AI application calls with a local or self-hosted observability interface.

Watch sending IP and domain reputation across email blacklists and Microsoft SNDS.

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

Direct wallet swaps with distinct fixed and variable fee displays

Email delivery with retry keys, inbound mail and contact-based broadcasts

Application email API and SMTP with a domain-verification setup workflow

Self-hosted newsletters with separate client brands and sending controls

Email campaigns, automations and transactional templates billed by sends

Newsletter sending with conditional content and message-size accounting

Email campaigns with unlimited contacts and monthly or prepaid sends

Application email with distinct transactional and broadcast message streams

Transactional email sending and inbound messages forwarded as JSON

SMTP and API delivery with recipient-based volume and plan-specific logs

Email journeys and broadcasts built around shared customer records

Application email delivery and isolated sandboxes for inspecting test messages

Newsletter portfolio production with reusable templates, approvals and revenue operations

Customer-profile orchestration that coordinates campaigns across connected sending systems

Newsletters, RSS updates and automated journeys priced by sending volume

Shared work chat for teams, outside collaborators, and visible chat agents.

Visualize the historical limit order book as a liquidity heatmap

Independent looping drawing threads with musical timing and SVG files