Alternatives to Fastmail

An AI email agent that works inside Gmail to organize, schedule, write, and search on a prompt.

AI email rewriting tool for Gmail, Outlook, LinkedIn, and iOS with custom tones and Quick Replies.

Yahoo Mail pairs free AI compose, AI thread summaries, and a Planner that turns email into tasks.

myMail box is a free iOS email client that unifies Gmail, Outlook, iCloud and IMAP accounts with notes, Cloud, and Calendar.

Free iOS email client that unifies Hotmail, Outlook, Gmail, Office 365, iCloud, Yahoo and Exchange in one ad-free inbox.

SaneBox uses AI email management to sort low-priority mail into smart folders so your inbox stays clean.

Superhuman Go puts proactive AI agents inside your email, docs and Slack workflows

Jace is an AI executive assistant that drafts email replies with full business context.

Spark Mail is a cross-platform AI email client that unifies Gmail, Outlook, iCloud, Exchange, Yahoo and IMAP and helps you triage, draft and collaborate.

Scape is a Mac email client with AI reply drafting and one-click local meeting recording — no bot in the call

Newton Mail is a cross-platform email client with per-recipient read receipts, send later, and shared team inboxes.

End-to-end encrypted email from Switzerland, now bundled into an all-in-one privacy workspace with Lumo AI

Mailopoly is an AI email inbox that filters, extracts and drafts, with business chat channels in one place.

Chuck is an iPhone email client that batch-deletes thousands of messages in seconds using on-device AI — nothing leaves your phone.

Unified email, calendar and to-do across Gmail, Yahoo, iCloud and Outlook.com — with Copilot in the compose box

Slashy is an AI email client that drafts replies in your voice and chases follow-ups automatically.

AI Gmail add-on that auto-drafts contextual email replies in your voice, ready for your review before sending

Replai drafts email replies that match your own writing voice and auto-sorts your Gmail or Outlook inbox.

Free mail.com Mail App for iOS and Android: one inbox for Gmail, Outlook and Yahoo mail plus 65GB storage.

Native Gmail client for iPhone, iPad and Mac with chainable custom actions and lock-screen triage

Email-native reminders: put a date before the @ sign and get a followup back then.

AI email assistant for Apple Mail, Gmail and Outlook — draft, reply, summarize and track opens without leaving your inbox.

Canary Mail is an AI email client with a Copilot writer, thread summaries, unified inbox, and PGP encryption.

HEY Email is 37signals' rethink of email: a Screener vets first-time senders so only people you approve ever reach your Imbox.

WebMail merges Gmail, Outlook, Yahoo, iCloud, and custom-domain accounts into one AI-assisted, ad-free inbox on iOS, Android, macOS, and Windows.

Gmail's Gemini 3 era: AI Overviews summarize email threads and answer plain-language questions about your inbox

Stamp is an AI email secretary that drafts replies in your voice, prioritizes your inbox, and schedules meetings.

Avec turns Gmail into a swipeable one-at-a-time email stack with hold-to-talk voice compose.

superReply is a Chrome extension that generates one-click, tone-matched AI email replies inside Gmail and Outlook Web.

AI-first email app that turns your inbox into a chat-style hub for email, docs, tasks, and calls