Alternatives to Microsoft Outlook

AI Chief of Staff that turns Slack, email, and calendar into a priority-ranked to-do list.

Mac email client that records meetings locally and drafts replies with context from your email and calendar.

AI email assistant that automates inbox, calendar, and workflows by CC

Proactive AI coworker that automates email, Slack & calendar busywork

Private offline AI assistant that indexes emails, files, and contacts.

Fast, private email and calendar hosting with custom domains and Masked Email.

Chat-based AI productivity assistant for reminders, tasks, and calendar in WhatsApp, Telegram, Slack, and email.

A radically reimagined email and calendar that puts you in control.

Superhuman: AI email, docs, and proactive assistant for speed.

AI email management that saves 3-4 hours weekly, across any inbox

AI email assistant that drafts, organizes, and automates email workflows on top of Gmail and Outlook.

AI teammate that handles email, meetings, and workflows across Slack, Gmail, and iMessage.

AI meeting prep: LinkedIn research + email context briefed before every external meeting.

AI email assistant for inbox triage and reply drafting, priced for solo users.

Email-based AI reading companion that summarizes articles, YouTube videos, and PDFs.

Calendar-driven AI agents that execute work on your schedule

AI-powered collaborative team inbox that unifies email, SMS, and social channels into one shared view.

Spark Mail is a cross-platform AI email client that filters out noise, prioritizes what matters, and helps you collaborate with your team.

End-to-end encrypted email from Switzerland, part of a full privacy suite

Turn Slack, email, and docs into an autonomous execution system with AI memory.

Free iOS email client for Hotmail, Outlook & Gmail — private, simple, no ads.

Free AI email assistant with compose, summaries, and an automated planner.

AI email assistant that automates your inbox with Claude 4.6

AI email drafting inside Gmail, powered by Google Gemini.

AI email client with on-device processing, PGP encryption, and cross-platform sync for Mac, iOS, Windows, Android.

AI-powered email app that turns your inbox into a chat-like collaboration hub

AI-first email assistant that triages, drafts, and searches your inbox using Claude 4.6 models.

Email-based reminder and follow-up assistant that schedules followups by sending an email to a date-based address.

An AI email secretary that learns your style to draft, prioritize, and schedule.

AI email assistant that adds drafting, tracking, and team tools to your existing Apple Mail, Gmail, or Outlook inbox.