# The 9 best AI email assistants

By Miguel Rebelo · August 5, 2025

Email is a digital hydra. For each one you bat out of your inbox, two others take its place. Wouldn't it be great if AI could be your personal email Hercules?

The competition for the best AI email assistant software is in full swing. You'll find powerful options that'll help you write emails, improve communication, sort through conversations, or burn a stack of junk mail in a flash.

## The best AI email assistants

- [Shortwave](/content/blog/best-ai-email-assistant/#shortwave/index.html) for AI-powered email search
- [Microsoft Copilot Pro for Outlook](/content/blog/best-ai-email-assistant/#microsoft/index.html) for improving communication
- [Gemini for Gmail](/content/blog/best-ai-email-assistant/#gemini/index.html) for Google Workspace users
- [Apple Intelligence for Apple Mail](/content/blog/best-ai-email-assistant/#apple/index.html) for Apple customers
- [Superhuman](/content/blog/best-ai-email-assistant/#superhuman/index.html) for mixing AI generation with message templates
- [Notion Mail](/content/blog/best-ai-email-assistant/#notion/index.html) for AI-powered inbox filtering
- [Proton Scribe](/content/blog/best-ai-email-assistant/#proton/index.html) for privacy
- [Edison Mail](/content/blog/best-ai-email-assistant/#edison/index.html) for AI-powered security
- [SaneBox](/content/blog/best-ai-email-assistant/#sanebox/index.html) for keeping your inbox organized

## What can AI bring to email?

AI still isn't ready to work unsupervised—but it's a great tool to shave minutes off of every message through organization, insights, writing assistance, and automation.

Here are areas where AI can help you do email better:

### Processing email content

- Run sentiment and intent analysis on the message.
- Generate a set of tags to sort incoming emails.
- Summarize the email or entire email thread.
- Optimize your inbox usage by having AI analyze usage and messaging partners.
- Get coaching on your email draft.
- Detect data types and extract actions or tasks.

### Business intelligence and enrichment

AI can use pattern recognition to surface relevant information and gather all related tasks, documents, and contacts from your email threads. This is useful for project managers to compare project statuses over time.

### Automatic replies, writing, and rewriting

AI email assistants often provide generative AI features for replying and composing messages. They may also offer multi-language support and simplify the replying process via integrations.

### Multimodality

AI enables the use of voice to manipulate text and vice versa, although this is less common in AI email assistants.

## What makes the best AI email assistant software?

### How we evaluate and test apps

- **Easy email integration.**
- **Inbox management.** App should support personal inbox management.
- **AI features.** Examples include sentiment analysis, intent detection, or data extraction.
- **Productivity and automation.** Other settings to help you save time and maintain inbox zero.
- **Data privacy.** Understanding of security policies for user data.

I filtered out those that merely integrated generative AI and selected a smaller, more reliable subset of email assistants after thorough testing.

## The best AI email assistants at a glance

|  | **Best for** | **Standout features** | **Pricing** |
| --- | --- | --- | --- |
| [Shortwave](/content/blog/best-ai-email-assistant/#shortwave/index.html) | Search | Flexible AI assistants; deep integration with Google Calendar | Free; paid from $14/user/month |
| [Microsoft Copilot Pro for Outlook](/content/blog/best-ai-email-assistant/#microsoft/index.html) | Improving communication | Unlocks features in other Microsoft apps | Microsoft 365 required, starting at $4.75/month |
| [Gemini for Gmail](/content/blog/best-ai-email-assistant/#gemini/index.html) | Google Workspace users | Seamless integration | From $7/user/month |
| [Apple Intelligence for Apple Mail](/content/blog/best-ai-email-assistant/#apple/index.html) | Apple users | AI runs locally | Free |
| [Superhuman](/content/blog/best-ai-email-assistant/#superhuman/index.html) | AI with templates | Great keyboard shortcuts | From $25/user/month |
| [Notion Mail](/content/blog/best-ai-email-assistant/#notion/index.html) | Inbox filtering | Granular filtering | Free; from $20/month |
| [Proton Scribe](/content/blog/best-ai-email-assistant/#proton/index.html) | Privacy | Zero-knowledge service | $19.99/month |
| [Edison Mail](/content/blog/best-ai-email-assistant/#edison/index.html) | Security | Runs on device | From $14.99/month |
| [SaneBox](/content/blog/best-ai-email-assistant/#sanebox/index.html) | Inbox organization | Priority categorization | From $4.13/month |

## Other AI email assistants to watch

- Mailytica: Focused on customer service by using AI to manage emails at scale.
- EmailTree: Offers advanced automation features for customer support teams.

## Simplify email with Zapier

You can also create custom AI email workflows using [Zapier](/content/site-root.html). Examples include automatically writing business emails or generating summaries. Here’s a template to get started: [AI Email Assistant Template](/content/templates/details/ai-email-assistant/index.html). **Related reading: [Best AI scheduling assistants](/content/blog/best-ai-scheduling/index.html).**

Miguel Rebelo is a freelance writer based in London, UK. He loves technology, video games, and huge forests.