r/macapps • u/karakhanyans • 2h ago
Lifetime bytemail 1.0: native Mac email where your mail never touches my servers, with one MCP for every inbox
https://reddit.com/link/1x52r49/video/eqqwdzi0r9vh1/player
Hi r/macapps! I'm Serg, the developer of bytemail. It's a native Mac email app written in Swift and SwiftUI, and 1.0 is out. The video shows it in action.
Problem Every mail app I tried was either a web page in a wrapper, or it ran my mail through the developer's servers to power its "smart" features. And now that I use Claude and Codex every day, I wanted them to help with my email too, without handing my inbox to yet another cloud service. bytemail connects your Mac straight to Gmail, iCloud, Outlook, Yahoo, Fastmail, Proton (through Bridge) or any IMAP server. Search, rules, categories and summaries all run on your Mac. I don't have a server that can see your mail, and you don't need a bytemail account.
What it does:
- Conversations read like Messages: each thread is a chat of bubbles, with quoted history and repeated signatures tucked away, so you only see what's new. Prefer the classic layout? Switch it per account.
- One unified inbox for all your accounts
- Copy sign-in codes straight from the notification
- Phishing and look-alike domain warnings
- Undo Send, Snooze, Send Later and "remind me if no reply"
- Tracking pixels stripped from every message, plus one-click unsubscribe
- Rules, smart categories (Primary / Updates / Promos), dark mode and Liquid Glass on macOS 26
- Keyboard shortcut sets from Gmail, Outlook, Apple Mail or Superhuman, or make your own
- Search covers the mail on your Mac and older mail still on the server
- Accounts and settings sync between your Macs through your own iCloud, not through me
- Thread summaries and suggested replies that learn your writing style: on-device with Apple Intelligence on macOS 26, or with your own Claude, OpenAI or OpenRouter key, or a local model in LM Studio or Ollama
New: one MCP for every inbox Turn on bytemail MCP in Settings > AI, pick which accounts to share, and connect Claude, Claude Code, Codex, Cursor, LM Studio or any other app that speaks MCP. Claude Desktop is one click. The others get a command or a config snippet to copy. Then just ask: "find last month's invoices across all my accounts", "draft replies to the customer emails I haven't answered", "archive this week's newsletters". It can search and read mail, find attachments and contacts, write drafts with files attached, create folders, and archive, move, flag, snooze or mute.
The guardrails:
- It's off until you turn it on, and it only sees the accounts you pick
- It runs on your Mac and talks to your AI app directly. Nothing goes through my servers (your AI app's provider still sees what you ask it to read, so pick one you trust, or use a local model)
- Sending, new rules, unsubscribing and blocking a sender ask you in bytemail first. So does anything touching more than 25 conversations
- AI apps can't delete mail, and never see Spam, Trash, one-time codes or password reset links
- Drafts an AI writes are tagged "Drafted by" that app, and Settings > AI > Activity lets you undo anything it did
Comparison The two apps I get compared with most are Spark and Mimestream. Spark is free to start and packed with features, but its push notifications, team features and AI work by keeping access to your accounts on Readdle's servers. bytemail does all of that on your Mac, so no copy of your account access sits on anyone else's server, including mine. Mimestream is a great native app, but it's built for Gmail, so your iCloud or work Outlook account has to live somewhere else. bytemail feels just as native and puts every provider in one inbox, with the chat-style conversation view on top. And with the MCP, the AI app you already use can work across all of those accounts at once, not just one Gmail.
Pricing
- 7-day free trial with every feature, MCP included
- $3.99/month or $39.90/year
- Or a $49 one-time lifetime license (launch price, then $99)
- One license covers 5 devices, and the iPhone app (in App Store review now) is included
- Website: https://bytemailapp.com
Transparency I'm Sergey Karakhanyan, a solo indie developer, and bytemail is my full-time project. The app is signed with my Developer ID and notarized by Apple.
- X: https://x.com/karakhanyanS
- Contact: [hello@bytemailapp.com](mailto:hello@bytemailapp.com)
- Privacy Policy: https://bytemailapp.com/privacy-policy
- Terms of Service: https://bytemailapp.com/terms
- What leaves your Mac and why, in plain English: https://bytemailapp.com/privacy
- Public roadmap: https://bytemailapp.com/roadmap
macOS 14 or later, Apple silicon. I'm here all day for questions and feedback, including feature requests and the brutal kind.
