AI email assistants: 8 best tools and why you need them

Email still shapes how we work, sell, and communicate. Even in 2025, it remains one of the strongest channels, as 60% of consumers prefer to hear from brands via email.

People, however, struggle with email in different ways. Some feel overwhelmed by the number of messages they receive daily, while others spend hours writing and preparing emails for business communications or marketing campaigns. AI email assistants can help with both.

In this article, we look at what these tools can do and review the best options for two groups of users: those who need help managing a busy inbox, and those who create emails as part of their daily work.

What are AI email assistants?

An AI email assistant is a tool that integrates AI with your inbox or email automation software to help you with one or more of your main email marketing tasks:

• organize and make sense of your inbox;
• add information from received emails to your collaboration tools;
• create personalized responses;
• create and run email marketing campaigns.

AI email assistants don’t necessarily help with every task on this list. Some are built to be all-rounded, while others are laser-focused on perfecting a single task.

Why use an AI email assistant

AI has a great impact on email marketing, and AI email assistants are a large part of the innovation, moving the industry forward. 

These assistants can help you:

• automate repetitive tasks;
• sort and manage your inbox;
• craft short personalized responses;
• ideate email copy via quick iteration;
• take the busywork out of creating email campaigns;
• reclaim your time to focus on strategy.

Overall, you can treat your AI email assistant as a junior associate who does the ground work under your close supervision. Pick the right tool for your purpose, customize your prompts, and you’ll shave off hours of your time, whether you need to manage an overflowing inbox or create an outreach campaign.

Types of AI email assistants

“AI email assistant” is a broad term that can include multiple tools and features. In terms of implementation, you typically can find AI assistants that work as an add-on that integrates into your email client or as a standalone web app. A more important distinction is between the functions an email assistant can perform. 

Here are a few options you’ll typically see:

1. Inbox management for general users and subscribers

AI-powered inbox filtering helps you categorize an inbox and remove unwanted or irrelevant emails:

• sorting and categorizing incoming mail;
• filtering low-priority messages;
• unsubscribing from unwanted senders in bulk;
• summarizing long threads;
• applying rules to incoming mail.

2. Email content and campaign creation for marketers

• email copy creation: An AI writing assistant can personalize, draft, and edit email copy and subject lines;
• campaign design: An AI assistant like this can help with research for an email marketing campaign;
• narrow purpose: Some AI email tools are built for a single narrow purpose, such as warming up leads or designing email HTML.

A single tool can perform more than one function. You’ll need to figure out what set of features is right for your specific needs.

What type of AI email assistant is right for you

Since many AI assistants offer different features, you’ll need to find the one that works for you.

The best AI email assistant for your business should:

• have all the features for your specific purpose;
• provide a good balance between its price and value;
• have room for growth.

Choose a few tools that fit this description, and try demos and free trials before committing.

AI email assistants for inbox management

These tools focus on helping you clear, organize, and understand your inbox faster. They sort incoming mail, highlight what matters, and reduce daily overload so you can remain focused.

1. Copilot

Copilot is an AI assistant created by Microsoft. It can be integrated natively with Outlook to help with analyzing and drafting emails. While using Copilot for chatting is free, the email assistant features in Outlook require a paid subscription to the MS 365 suite.

(Source: Microsoft)

Key features:

• analyze email threads;
• draft and send emails with AI;
• set up automatic emails;
• schedule calls or block time on your calendar.

Pricing: $30 per month

Best for: Analyzing and drafting emails

2. MailMaestro

MailMaestro is an app that can manage your inbox and take notes during meetings. It’s most useful with a suite of Microsoft apps because it can only take notes in Teams, but it can also be used with Gmail and Google Calendar.

(Source: MailMaestro)

Key features:

• automatic tagging and labeling of an inbox;
• summarizes incoming emails;
• writes emails with AI;
• takes notes in a Teams meeting.

Pricing: $25 per month

Best for: Managing a busy inbox and taking meeting notes

3. Clean Email

Clean Email is an inbox decluttering tool. It allows you to remove unwanted emails and customize cleanup rules for all new mail hitting your inbox.

(Source: Clean.email)

Key features:

• clear your inbox of unwanted emails;
• sort emails into folders;
• unsubscribe from senders in bulk;
• set up customized sorting rules;
• works with most email clients.

Pricing: From $11.99 per email account per month

Best for: Filtering and decluttering an inbox

4. ChatGPT add-in for Outlook

This email assistant is a free add-in for Outlook. It brings ChatGPT functions into your MS 365 account and allows you to analyze emails or create emails with a prompt. You do need a ChatGPT API key for this, and OpenAI charges for API usage.

(Source: ChatGPT add-in for Outlook)

Key features:

• generate summaries of incoming emails;
• highlight key points in emails;
• create email responses based on custom prompts.

Pricing: Free; ChatGPT API pricing applies

Best for: A simple and inexpensive tool for analyzing incoming emails and drafting responses quickly

AI email assistants for email content and campaign creation

These tools are built for marketers who need help writing emails, planning campaigns, and speeding up production workflows. They support ideation, copywriting, and, in some cases, even HTML design.

5. Stripo

Stripo is an email marketing app that allows you to create HTML email templates for your email marketing campaigns. It comes with an AI Assistant that can help you create email copy for every step of a campaign. Unlike most LLMs, this email assistant is trained to create an email HTML code that looks flawless when sent.

(Source: Stripo.email)

Key features:

• drafting email copy and subject lines;
• creating HTML code for emails;
• designing email marketing campaigns;
• other email marketing features provided by the suite of tools.

Pricing: A free-forever plan is available

Best for: Designing B2C email marketing campaigns

6. Rytr

Rytr is a multipurpose AI writing tool. It can be integrated with most email clients with a Chrome extension to draft and edit email copy.

(Source: Rytr.me)

Key features:

• create email copy with your prompt and a set of additional instructions;
• change parts of an email copy with a single button;
• useful for other writing tasks.

Pricing: A free-forever plan is available. Paid tiers start at $9 per month

Best for: Writing email copy

7. Warmer.ai

Warmer is a tool for cold outreach that is useful for founders and sales teams. It can help you find relevant touchpoints with your customer base and create email copy that would help you get an answer from them.

(Source: Warmer.ai)

Key features:

• AI-powered enrichment of lead data via social media scraping;
• generation of personalized email copy.

Pricing: From $79 per month

Best for: Cold outreach personalization

8. Superhuman

Superhuman is a suite of AI writing assistant tools that includes all Grammarly features and plenty of AI-based email features. Basic writing tools are available on a free plan, but the email assistant module is only available on a paid one.

(Source: Superhuman)

Key features:

• sort an inbox into customized categories;
• set up follow-up reminders;
• share and comment on emails with a team;
• draft and send emails with AI.

Pricing: From $40 per month

Best for: Drafting email copy and collaboration

Wrapping up

AI assistants can greatly boost workplace productivity. Whether it’s an inbox filter that helps you focus on what matters or an AI email writer that helps you draft perfect copy, they’ll shave hours off your day. Choose the tools that match your goals, and use a trial period to judge whether they’re right for you.