"Proton Mail" matching MCP connectors:

Piloxa – Certified MailA

com.piloxa

Send a USPS Certified Mail letter to any US address from ChatGPT, Claude or Grok. The assistant prepares the letter and hands back a review link; a person reads it, checks the recipient, pays and authorizes. Nothing is printed, mailed or charged without that approval. $16.17 with the electronic return receipt, $13.18 without. No subscription, and no account needed to see a price. Docs: https://piloxa.com/send-a-certified-letter-online

I do everything related to Gmail and productivity

Apdf — PDF Tracking & AnalyticsAOAuth

io.apdf

PDF engagement layer for apps and agents: tracking links, read analytics, and a full PDF toolset.

Prepare USPS Certified Mail letters from any AI assistant; a person reviews, pays and authorizes.

Mail Merge PDF: the site's own MCP server — checker, enquiry (enquiry = a human handoff, not a...

A MCP server for Gmail that lets you search, read, and draft emails and replies.

Let your agent into iCloud Mail, calendar and contacts. It gets actions, never your password.

Multiple Gmail accounts, editable Google Sheets & Docs for AI agents. Deny-by-default access rules.

Agent-Native Superhuman - email client with keyboard shortcuts and AI triage

Manage Gmail end-to-end: search, read, send, draft, label, and organize threads. Automate workflow…

Manage Gmail messages, threads, labels, drafts, and settings from your workflows. Send and organiz…

A MCP server for Outlook email that lets you search, read, and draft emails and replies.