This connects AI assistants to Proton Mail through standard SMTP and IMAP protocols via Proton Mail Bridge. It exposes the full email lifecycle: send with threading headers, reply and forward with Markdown rendering, search by sender/subject/date/attachment, bulk operations for moving and flagging messages, folder and label management, and thread-level actions that walk conversations across folders. All destructive operations support dry-run preview, and the send tools verify the Sent-copy UID with retry logic to work around Proton's indexing lag. Reach for this when you want programmatic Proton Mail access without touching private APIs. It sanitizes HTML by default and includes guards against display-name spoofing in the From field.
claude mcp add --transport stdio sethbang-proton-mail-mcp uvx proton-mail-mcp