PostageGuides and comparisons
How to give Claude, Codex and other AI agents your email on a Mac, and how Postage compares with other mail apps.
Guides
- How to Connect Claude to Your Email on a Mac
Give Claude Desktop and Claude Code your Gmail, iCloud, Fastmail or any IMAP inbox through a local MCP server, with every send waiting for you.
- Organize Your Inbox with Claude Code
Write your email rules once in CLAUDE.md or a skill, let Claude Code apply them through Postage every morning, and undo any batch in one step.
- Use Codex and the ChatGPT Desktop App with Your Email
Add Postage to ~/.codex/config.toml once and Codex in the ChatGPT desktop app, the Codex CLI and the IDE extension can search, sort and draft your mail.
- Email MCP Servers on a Mac: What to Look For
Hosted, scripted or built into a mail app: how email MCP servers differ, and the checks that matter before an AI agent gets your inbox.
- Can Claude Send Email? Claude Desktop and Claude Code
Claude can't send mail on its own. Give it an email connector or MCP server and it can write and send, with you approving each message first.
- How to Connect Claude to iCloud Mail
Claude's built-in email connector covers Gmail. To use Claude with iCloud Mail, add your iCloud account to Postage and connect Claude to its MCP server.
- Is It Safe to Give an AI Agent Access to Your Email?
The real risks of letting Claude or Codex into your inbox (prompt injection, sending as you, bulk mistakes) and the settings that limit each one.
- Can Claude Read My Gmail? How to Connect It on a Mac
Yes, once Claude has a connection to your Gmail. Add Gmail to Postage with an app password, connect Claude Desktop or Claude Code, then ask.
- Can ChatGPT Read Your Email on a Mac?
Yes, through Codex in the ChatGPT desktop app. Connect it to Postage's MCP server on your Mac and it can search and read every IMAP account you add.
- How to Let an AI Agent Draft Email Replies Without Sending Them
Set your agent to Organize and draft in Postage. Replies land in your Drafts folder or a compose window, and only you can press Send.
- Can an AI Agent Unsubscribe You from Email and Clean Your Inbox?
An agent can sort and archive newsletters in Postage, with one Undo per batch, and show you who mails you most. Unsubscribing stays with you.
- Can Claude Read Email Attachments?
Yes, if its email connection hands over the contents. Through Postage, Claude reads text from PDF, CSV, HTML, JSON, XML and plain text attachments.
Comparisons
- Postage vs Mimestream
Mimestream is a native Mac client for Gmail on a subscription. Postage covers any IMAP account, adds an MCP server for AI agents and costs $39 once.
- Postage vs Superhuman for Email with AI Agents
Superhuman's Mail MCP comes with its Business plan. Postage runs an MCP server on your Mac for any IMAP account, for $39 once.
- Mimestream vs Superhuman: Which Mac Email App Fits?
Mimestream is a native Gmail app for Mac; Superhuman is AI email for Gmail and Outlook teams. How they differ, and where Postage fits for other accounts.
- Which Email Clients Work with Claude Desktop and MCP?
Postage, Superhuman Mail and Fastmail each have their own MCP server, and they differ on accounts, where it runs and sending. Mimestream lists none.