A Rich Message is a Telegram post composed using the sendRichMessage method introduced in Bot API 10.1 (June 2026), enabling document-grade structured content including tables, image collages, block quotations, numbered lists, collapsible sections, and embedded media — all within a single channel post up to 32,768 characters. Unlike MarkdownV2 or HTML, Rich Messages render with native Telegram formatting widgets visible on all modern clients. Autogram supports Rich Message composition so channel operators can schedule structured newsletter-style posts without writing raw API calls.
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