8 Best AI Email Generators for Content Marketers (Based on My Testing)

Writing the perfect email can be one of the most challenging tasks for any marketer or business owner. I used to find myself staring at a blank screen, trying to come up with a catchy subject line or the right words to share my message, only to end up feeling frustrated.

Most business owners can’t afford to spend hours on a single email. On the other hand, AI email generators can help you find the right tone, correct grammar, and even summarize your blog posts for newsletters.

After testing multiple AI tools for content marketers and WordPress users, I’ve found the best AI email generators that are user-friendly and deliver readable results. In this guide, I’ll walk you through these top tools.

Quick Overview of the Best AI Email Generators

If you’re in a hurry, this quick overview table will help you quickly discover the best AI email generators for content marketers:

Why Use AI to Write Emails?

Artificial intelligence (AI) helps you write better emails faster, without starting from scratch every time. It removes the friction of staring at a blank screen while still letting you stay in control of the final message.

Instead of spending hours drafting, editing, and second-guessing your wording, AI email tools give you a solid first draft in seconds. From there, you can tweak the tone, add a personal touch, and hit send.

Here are the benefits of using an AI email generator:

• You save time on every campaign: AI handles the first draft, subject line ideas, and summaries, so you can focus on strategy instead of wording.
• You never start from a blank page: Even a rough prompt is enough to generate usable copy. This is especially helpful when you need to send emails regularly.
• You can reuse existing content: Blog posts, tutorials, and product updates can be turned into email newsletters automatically instead of being rewritten manually.
• You get clearer, more readable emails: Most AI tools help shorten long sentences, fix awkward phrasing, and keep your message easy to scan.
• You can adjust tone without rewriting: AI makes it easy to switch between friendly, professional, or urgent messaging depending on the situation.
• You can personalize at scale: Some tools write emails based on user behavior, like purchases or signups, without you creating dozens of versions by hand.

I still treat AI as a starting point, not a replacement. I always review the draft, make sure the details are accurate, and add my own voice where it matters. Used this way, AI becomes a practical writing assistant rather than a shortcut.

My Proven Method for Testing AI Email Generators

I tested these tools by creating real email campaigns that matched common content marketing scenarios. I wanted to see which ones saved time, produced readable results, and worked well for beginners.

• Setup and ease of use: I installed each tool to see how quickly I could generate my first email. Some worked inside WordPress, while others required account setup on external platforms.
• Writing quality and tone: I tested how natural the AI-generated text sounded. I checked if it could match different tones (professional, friendly, urgent) and whether the output needed heavy editing.
• Content repurposing speed: I measured how fast each tool could turn a blog post into an email summary. Tools like AIOSEO did this in seconds, while others required manual copying.
• Integration and automation: I checked which tools connected directly to email services or marketing automation platforms. I also tested if they could trigger emails based on user actions.
• Pricing and credit limits: I compared monthly costs and any usage limits. Some tools charge per email generated, while others offer unlimited use.
• Deliverability features: I looked for tools that help prevent emails from landing in spam folders, like authentication settings or spam-word checkers.

This process helped me identify which tools are practical for everyday content marketers, not just the ones with the most features.

Here are the AI email generators I recommend:

1. All in One SEO (AIOSEO) – Best for WordPress Content Repurposing

AIOSEO is the best WordPress SEO plugin, and it includes a powerful AI Content Generator that turns any blog post into a marketing email.

If you publish regular content, this tool lets you promote new articles to subscribers in seconds without manually summarizing your work.

I use AIOSEO on several WordPress sites. The AI feature sits right inside the post editor, so I don’t need to switch between platforms or copy text around.

When I finish writing a blog post, I scroll down to the AIOSEO settings and clicked the ‘AI Content’ tab. Inside the ‘Social Posts’ section, I select ‘Marketing Email’ and click ‘Generate Social Posts’.

The AI reads my entire article and automatically creates a short, engaging email summary that highlights the main points. It takes about 10 seconds.

The generated text includes a catchy subject line and a clear call to action. I can also regenerate different versions until I found one that matched my tone.

Plus, AIOSEO’s credit system is straightforward. The Basic plan comes with 10,000 credits, and each email generation uses about 10 credits. That means I can create roughly 1,000 email summaries before needing more credits.

I don’t have to write prompts or explain what my article was about. The AI already has full context because it analyzes the post directly inside WordPress.

✅ Specific ‘Marketing Email’ setting writes copy based on your posts.

✅ No manual prompts needed—AI knows your article context.

✅ Fair credit-based system—10,000 credits generate ~1,000 emails.

✅ Works directly inside WordPress dashboard.

✅ Includes SEO optimization tools alongside AI features.

✅ Used by over 3 million websites.

❌ Credit system means heavy users may need to buy more credits.

❌ Requires separate email service connection to send emails.

❌ Extensive AI use requires a paid plan (Lite includes 100 free credits).

Pricing starts at $49.50/year.

Best for bloggers and content creators who want to turn existing posts into email newsletters quickly.

However, one limitation is that AIOSEO generates the email copy but doesn’t send it. You’ll need to connect an email marketing service like Constant Contact or Brevo to actually deliver the emails to your list.

Why I Recommend AIOSEO: It saves time for WordPress bloggers. You can turn existing content into emails instantly. You can learn more about how we use this plugin in our detailed AIOSEO review.

2. FunnelKit Automations – Best for WooCommerce Marketing

FunnelKit Automations is the best marketing automation tool for WooCommerce, and it has an AI writer that creates emails for customers who leave items in their carts.

It can also write personal messages based on the specific products people buy from your shop.

I tested FunnelKit on a demo WooCommerce store. The AI writing feature lives right inside the automation builder, so I didn’t need to connect external services or copy API keys.

When I set up an abandoned cart sequence, I just clicked the ‘AI Assistant’ button inside the email editor.

The tool analyzed the products in the cart and wrote a reminder email that mentioned the specific items by name.

It also automatically generated a unique discount code and inserted it into the email copy. I could then adjust the discount percentage, and the AI rewrote the message to match.

FunnelKit also includes pre-built automation recipes. I selected ‘Welcome New Customer’ and the plugin created a three-email sequence in seconds.

Each email had different messaging based on whether the customer made a purchase or just signed up.

Plus, the AI understands WooCommerce data.

When I tested a post-purchase email, it referenced the exact product the customer bought and suggested related items they might like.

✅ AI writing tool built directly into the plugin.

✅ Creates special discount codes and inserts them automatically.

✅ Pre-made recipes for quick email setup.

✅ Personalized emails based on customer purchases.

✅ Works easily with WooCommerce product data.

✅ No external accounts needed to start writing.

❌ Only works with WooCommerce stores.

❌ Most advanced AI features require the professional bundle.

❌ Learning curve for complex automation workflows.

Pricing starts at $99.50/year (introductory offer).

Best for WooCommerce store owners who want to recover abandoned carts and send personalized product recommendations.

I could regenerate the email copy multiple times until the tone felt right. The AI offered friendly, professional, and urgent variations.

One drawback is that the most powerful AI features come with the professional bundle, which costs more than the basic Automations Pro plan. New businesses might find that investment steep at first.

Why I Recommend FunnelKit Automations: It increases sales for store owners. It handles customer follow-ups automatically so you can focus on products. You can learn whether this is the best plugin for you by reading our FunnelKit Automations review.

3. Constant Contact – Best All-in-One AI Email Marketing Platform

Why I Recommend Constant Contact: It simplifies email marketing for beginners. You can write and send campaigns without juggling multiple tools. We have a thorough Constant Contact review where you can learn more.

4. Brevo – Best for Multichannel Marketing on a Budget

Why I Recommend Brevo: It saves money for growing lists. You can store unlimited contacts and only pay for what you send.

You can discover whether this is the right email tool for you in our complete Brevo review.

5. Uncanny Automator – Best for Custom WordPress Email Automations

Uncanny Automator is the best automation plugin for WordPress. It acts as a bridge that connects your site to OpenAI. It allows you to create custom AI-driven workflows, like automatically drafting a personalized follow-up email when a student finishes an online course.

I tested this by connecting an OpenAI API key to my site. To create the AI Email, I set up a simple two-step automation recipe.

First, I set the trigger to ‘User completes a course’ in LearnDash. Then, I added the OpenAI action to ‘Use a prompt to generate text.’

In the prompt field, I told the AI to write a congratulatory message based on the course title. The plugin generated the text immediately.

To actually deliver the message, I added a second action to ‘Send an email’. I simply selected the generated text from the OpenAI step and inserted it into the email body.

I also set up a delay. I scheduled it to wait 24 hours after the trigger event instead of sending the email immediately. 

The best part is that Uncanny Automator doesn’t charge per email. You connect your own OpenAI account and pay their standard API rates, which are extremely low for text generation.

✅ Unlimited App Credits—no extra fees per email generated

✅ Connects over 150 WordPress plugins and external apps

✅ Set delays so AI emails send exactly when you want

✅ Create custom automation rules based on user actions

✅ No-code workflow builder for complex sequences

✅ Works with membership, eCommerce, and LMS plugins

❌ Requires OpenAI account and API key connection

❌ No visual email designer like standalone platforms

❌ Steeper learning curve for complete beginners

Pricing starts at $149/year

Best for WordPress users who want to create smart, automated emails triggered by specific actions like course completions or membership signups

One con is that Uncanny Automator works with plain text or HTML. It doesn’t have a drag-and-drop email designer, so it’s best for text-based notifications.

Why I Recommend Uncanny Automator: It gives advanced control for WordPress sites. You can create smart emails that respond to what users do. Please see our Uncanny Automator review to learn more about what this plugin is capable of.

6. Instantly.ai – Best for Cold Outreach & Lead Generation

The campaign dashboard showed real-time stats. I tracked opens, replies, and bounces without switching between tools.

One drawback is that the advanced AI researcher features require separate ‘credits’ that are not included in the base monthly subscription. You will need to budget for these extra credits if you plan to do heavy lead research.

Why I Recommend Instantly.ai: It automates cold outreach research. You can reach new contacts without spending hours on manual work.

7. Grammarly – Best for Polishing & Drafting Everywhere

While most people know Grammarly as a grammar checker, it’s also a full-fledged generative AI partner. Its integrated AI assistant lets you brainstorm, draft, and rewrite content across more than 500,000 apps and websites.

For content marketers, its unique strength is that it works everywhere. Unlike other AI tools that require you to copy-paste text into their specific platform, Grammarly’s AI works inside your WordPress editor, Gmail, Slack, and even LinkedIn.

I tested Grammarly by writing email campaigns in multiple places. After installing the browser extension, the AI assistant appeared automatically in every text field I used.

Inside WordPress, I highlighted a rough email draft and clicked ‘Improve it’. The AI rewrote the entire paragraph to sound more professional and engaging in seconds.

Then, in Gmail, I used the AI to generate a cold outreach email from scratch. I typed a short prompt like ‘Write an email introducing our WordPress hosting service’ and the tool created a complete draft with subject line and body copy.

Overall, the one-click rewrite tool impressed me most. I could select any paragraph and change its tone to be more persuasive, confident, or friendly without rewriting it myself.

It also has a built-in plagiarism checker that makes sure your AI-generated content is original. It also includes an AI detector that flags text that might be flagged by search engines as AI spam.

✅ Pro plan offers 2,000 AI prompts per month

✅ One-click rewrite tool transforms tone instantly

✅ Built-in plagiarism checker and AI detector

✅ Works across 500,000+ apps and websites

✅ Drafts content directly in WordPress, Gmail, Slack, LinkedIn

✅ No copying or switching between platforms

❌ Cannot send emails or manage subscriber lists

❌ AI can be overly formal or stiff

❌ Not a marketing platform—purely a writing tool

Pricing starts at $12/month (billed annually)

Best for content marketers who want an AI assistant that works everywhere they write

Grammarly’s Pro plan includes 2,000 AI prompts per month. That’s enough to generate dozens of email drafts, social captions, and blog outlines without running out of credits.

One limitation is that Grammarly is a writing tool, not a marketing platform. It cannot send emails, manage your subscriber list, or track click-through rates.

Another thing to watch out for is that the AI suggestions can sometimes be overly formal or stiff. I often had to add a human touch to keep the writing sounding creative and unique.

Why I Recommend Grammarly: It works everywhere you write. You can draft and polish content without leaving your current workflow.

8. Jasper – Best for Professional Copywriting & Brand Voice

Jasper is a professional AI writing tool that’s great for creating long marketing campaigns. For example, it has a special Brand Voice feature where you can upload your company’s style guide. This helps the AI write emails that sound exactly like you and not like generic output.

I tested Jasper by creating a multi-email welcome sequence. After signing up, I accessed the Brand Voice settings and uploaded sample content that represented my writing style.

Jasper analyzed the text and learned my tone, vocabulary, and sentence structure. When I generated new emails, they matched my voice automatically without extra prompting.

The platform also includes templates for famous marketing frameworks like AIDA (Attention, Interest, Desire, Action). I selected the AIDA template and filled in basic information about my product.

Jasper wrote a complete email sequence that followed the framework step by step. Each email built on the previous one to guide readers toward a purchase decision.

I tested the language feature by writing emails in Spanish and French. Jasper maintained the same brand voice and marketing structure across different languages.

Plus, the team collaboration tools let multiple people work on campaigns together. I could share templates and brand voice settings with colleagues to keep our messaging consistent.

When it comes to pricing, the Creator plan includes unlimited AI words. This means I could generate as many drafts as I needed without worrying about running out of credits or hitting monthly limits.

✅ Creator plan includes unlimited AI words

✅ Brand Voice feature matches your company’s style guide

✅ Templates for famous marketing frameworks like AIDA

✅ Supports writing in over 30 languages

✅ Built for high-volume content creation

✅ Team collaboration tools for consistent messaging

❌ Separate website requires copying text back to WordPress

❌ Higher monthly price than other tools

❌ Steeper cost if paying month-to-month vs annually

Pricing starts at $59/month (billed annually).

Best for professional copywriters and marketing teams who create high-volume content and need AI to match their exact brand voice

One downside is that Jasper is a separate website, so you have to copy the generated text back into WordPress or your email marketing platform manually. This often means you lose your formatting and have to re-add links or bold text.

Plus, the monthly price is higher than other tools, especially if you choose to pay month-to-month instead of annually. The annual plan offers better value but requires a larger upfront commitment.

Why I Recommend Jasper: It handles high-volume content creation. Large teams get access to consistent brand voice across all campaigns.

What Is the Best AI Email Generator for Content Marketers?

After testing all the top tools, I believe AIOSEO (All in One SEO) is the best AI email generator for most content marketers. It’s the easiest way to turn your blog posts into email newsletters without ever leaving your WordPress site.

However, the best tool for you depends on what you need to do.

• If you have a WooCommerce store, I recommend FunnelKit Automations because it’s built for online shops and helps you send personal AI emails based on what customers buy.
• For beginners who want a simple, all-in-one tool, Constant Contact is my top choice since it handles both the writing and the sending of your emails in one place.

Frequently Asked Questions About AI Email Generators

Many business owners have questions about how to use artificial intelligence to improve their marketing without losing the personal touch.

Here are the most common questions I hear about using AI email generators for content marketing.

What is the best AI email generator for beginners?

For most beginners using WordPress, I recommend AIOSEO because it works directly inside your website dashboard. It takes blog posts you’ve already written and automatically creates summaries for newsletters.

If you prefer a standalone tool that handles both writing and sending, Constant Contact is another excellent choice with a friendly drag-and-drop editor.

Do I need technical skills to use an AI email generator?

No, you don’t need coding or technical skills to use tools like Constant Contact or AIOSEO. These platforms use simple text prompts where you just describe what you want.

While more advanced tools like Uncanny Automator allow for complex workflows, they also use a no-code interface where you simply select options from a menu.

Will AI-generated emails go to the spam folder?

Using AI to write your copy doesn’t automatically send emails to spam, but how you send them matters. To make sure messages reach the inbox, I recommend using a plugin like WP Mail SMTP with a reliable service like SendLayer.

Additionally, tools like Grammarly can help you check AI-generated text to avoid spammy words that might trigger filters.

Can AI email generators help with eCommerce sales?

Yes, AI email generators are very effective for online stores. A tool like FunnelKit Automations is built specifically for WooCommerce and can write personalized emails for customers who leave items in their cart. It uses your actual product data to create relevant offers, which helps convert more visitors into buyers.

Is it okay to send AI-generated content to my subscribers?

Yes, as long as the content is helpful and accurate. Most successful marketers use AI as a starting point and then add their own voice and insights. Tools like Grammarly help you polish AI drafts to sound more human. Your subscribers care about getting valuable information, not whether a human or AI wrote the first draft.

Is the content from AI email generators original?

Tools like Jasper use advanced language models to create original text based on your instructions. While the AI learns from vast amounts of data, it generates new sentences for every prompt rather than copying existing text.

However, I always recommend using a tool like Grammarly to double-check your drafts and add your own personal brand voice before sending.

Additional Resources for Email Newsletters

I hope this article helped you discover the best AI email generators.

If you want to learn more about growing your email list and sending better emails, check out these helpful guides:

• How to Create an Email Newsletter (Step by Step) – A complete guide for beginners on how to start your first newsletter from scratch.
• Best Email Marketing Services for Small Businesses – Our expert pick of the best platforms to send your AI-generated emails.
• How to Build Your Email List in WordPress with OptinMonster, Learn how we used OptinMonster to grow our own email subscribers by 600%.
• Beginner’s Guide to WordPress Email Marketing Automation – A deeper look at how to set up automatic ‘drip’ sequences to save you time.
• How to Fix WordPress Not Sending Email Issue – A must-read guide to make sure your AI emails don’t end up in the spam folder.

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