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Autopilot for Your Inbox with AI Rules
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by
Philippe Lehoux
March 13, 2025
· Updated on
We've all been there. You open your inbox on Monday morning and face an avalanche of messages. Some need immediate attention. Others could wait. Many should be handled by different team members. And a surprising number don't need any response at all. While Missive's rule engine has always given you the flexibility to automate your workflow exactly how you want it, today we're taking that customization power to a whole new level.
What if your inbox could sort itself? What if it could understand what each email is about and take the right action automatically—all while you maintain complete control over how it behaves? What if you could define exactly how your emails are processed, based not just on who sent them, but on what they actually contain?
Today, we're launching AI Rules in Missive - a simple way to bring the intelligence of AI to your email workflow without the complexity. It's the same flexible rule engine you love, now with the power to understand email content the way you do.
AI Rules are an extension of Missive's existing rules engine. If you've used rules before, you know they're powerful for automating repetitive tasks based on simple conditions like sender address or subject line keywords.
Now, we're adding the ability to use AI to understand what an email is actually about.
Here's how it works:
No training data. No complicated setup. Just plain language instructions that the AI follows.
Let's look at some practical ways teams are already using AI Rules during our beta:
- A ⛑️ customer service team set up a rule that using this prompt:
Is this customer angry or upset? Respond with ONLY "YES" or "NO".
If the AI says YES, the email gets flagged as high priority and assigned to a senior agent.
- A 📈 sales team created a rule with this prompt:
Is this a qualified sales lead or just a general inquiry? Respond with ONLY ONE of these exact words: "sales lead" or "general inquiry".
Leads go straight to the sales pipeline, while general questions route to the support team. Their sales reps now spend more time selling and less time triaging emails.
- A ⚖️ legal firm uses AI to detect if an email contains a deadline or time-sensitive request.
Does this email contain a deadline, due date, or time-sensitive request? Respond with ONLY "YES" or "NO".
If it does, it gets tagged "Urgent" and triggers a notification and creates tasks. They haven't missed a filing deadline since.
The best part? These teams didn't need to become AI experts. They just wrote simple instructions in plain English.
One of the most powerful features of AI Rules is the ability to use the same prompt across multiple rules. This lets you create sophisticated email triage systems without duplicating your AI analysis costs.
For example, you could recreate Gmail's smart categories with more flexibility and control.
First, create a prompt that categorizes emails:
Analyze this email and respond with EXACTLY ONE of these categories:
"SOCIAL" - for messages from social networks, dating sites, etc.
"PROMOTIONS" - for marketing emails, offers, discounts, newsletters
"UPDATES" - for notifications, confirmations, receipts, statements
Then create separate rules, all using this exact same prompt but with different matching conditions:
The beauty of this approach is that the AI only analyzes each email once, even though you have six different rules. The result is cached and reused across all rules, making this both efficient and cost-effective.
And unlike Gmail's fixed categories, you have complete control over:
This is just one example of how you can use AI Rules to create a customized workflow that fits exactly how you and your team want to work.
We've built four powerful AI capabilities into Missive:
As shown above, use AI to analyze email content and make decisions. The AI can detect sentiment, identify request types, or extract specific information that would be difficult to capture with traditional keyword rules.
For example: "Is this customer angry?" or "Does this email contain a deadline?"
Have the AI create a helpful note about an email. The AI can summarize long threads, extract key points, translate emails or provide context for your team.
e.g.
Translate the email to English.
Let the AI identify action items in emails and automatically create tasks. No more manually creating to-dos from your messages. For example:
Extract any tasks or action items from this email and create a task for each one.
Automatically create response drafts for common inquiries. The AI can craft a personalized reply based on the email content, which you can review and send with a click:
Create a helpful response to this customer inquiry about our pricing plans.
The above draft example could be paired with an AI condition that makes sure the email is about billing!
We've worked hard to make AI Rules approachable. You don't need to be a prompt engineer or AI expert to get value from day one. The system uses gpt-4o-mini, which offers an excellent balance of speed, cost-effectiveness, and quality for email processing.
We understand that email contains sensitive information. That's why:
For years, we've been building tools to help teams manage email more efficiently. Rules have always been at the heart of that mission - letting you automate the repetitive stuff so you can focus on the work that matters.
AI Rules take that automation to a new level. Now your inbox doesn't just sort emails based on simple patterns - it understands what they're about and what needs to happen next.
This isn't about replacing human judgment. It's about removing the tedious parts of email management so your team can focus on what humans do best: building relationships, solving complex problems, and delivering value to your customers.
AI Rules are available today for all Missive users on the Productive plan and above. Give them a try, and let us know what you think.
Your inbox will thank you.
Want to learn more about AI Rules? Check out these helpful resources:
July 24, 2025
6 Fyxer AI Alternatives: From email clients to add-on tools
We cover Fyxer AI’s key features and compare them to alternatives like Gmelius and Missive, helping you choose the best tool for your inbox.
As AI continues to grow in popularity, email management is one of the most competitive spaces for AI tools. Fyxer AI has gained a lot of attention, promising to save you one hour a day as your AI assistant dedicated to meeting and email management.
This article will break down what Fyxer AI is and some alternatives that exist in the market.
Fyxer AI is an AI assistant that connects to your Gmail or Outlook inbox. It does three things well:
It genuinely feels like a capable assistant that manages your email directly within your existing Gmail/Outlook inbox. There's no new interface to learn, no complex installation. Just an organized "person" who opened your messy inbox and took over, in a way that still granted you control over what's sent out.
Within 10 minutes of setting up Fyxer AI, all my emails were auto-tagged into one of their default labels (I use Gmail):
To enable auto-drafting of replies, you have to give Fyxer AI's draft prompter a bit of context related to your tone and business.
And here's what an auto-drafted reply looked like:
This is a great experience for anyone who wants to stay in the Gmail or Outlook interface, but really need on-going organization and administrative help because of the high volume of emails that they handle personally.
Like Superhuman, Fyxer AI is focused on inbox throughput—how much faster can you process your emails. Although that's an important goal, often times, it's the wrong goal.
Maybe the question is whether you should be replying to most of those emails in the first place, which we'll get into for some of the Fyxer alternatives.
When looking at Fyxer AI alternatives, we included 3 types:
We'll start with similar functionality and interface and work our way down the list.
Like Fyxer, Gmelius exists on top of your existing Gmail interface so you have a familiar experience with new functionality.
Gmelius also has an AI-powered assistant that auto-categorizes and can draft replies on your behalf. There are small details between the two options, for example:
On the other hand, Gmelius is also a collaboration focused tool instead of a purely productivity focused tool like Fyxer, which means Gmelius has more functionality for teams that work together within an inbox. They have the ability to chat internally on emails, assign emails to others, create automations that run based on certain AI tagging, SLA escalation, and more.
Both Gmelius and Fyxer have a closed AI assistant, meaning you're not able to bring your own AI key and select the models that you work with. This is great for those who don't really have a preference on which AI model they prefer.
From a pricing perspective, Gmelius is a little bit more expensive than Fyxer:
If you're looking for a Fyxer alternative that is a little more oriented to teams but has much of the same functionality and interface, then Gmelius might be the one.
Similar to Gmelius, Hiver integrates directly into your existing email client, giving you a familiar interface to work with. Unlike Gmelius, Hiver supports Gmail and Outlook accounts.
Like Fyxer, Hiver has an AI-powered email assistant that can help you auto-draft emails and auto-label emails based on their contents. Though, like Gmelius, it's not quite as simple as Fyxer's default experience since Hiver's core users are customer support teams working out of shared inboxes.
If you're an executive that's just looking to replace Fyxer's lightweight functionality, without any of the team related features like collaboration, automated workflows, analytics, or SLA monitoring, then Hiver might be a little overkill.
Could you get it to work? Absolutely. Will it feel like it was built for your use case? Probably not.
From a pricing perspective, Hiver's plans that include AI start at $19/user/month billed annually. However, there are limitations on how many AI-drafted replies you can have (20/user/day).
Now we're moving onto tools with more functionality than Fyxer, but will also have a less familiar interface.
Missive is an email client for teams that need to collaborate in their inbox. Like Fyxer, you can create AI-powered email assistants that help you triage, label, and draft replies. Unlike Fyxer, Missive is way more flexible in implementation, which depending on who you are, could be a good or bad thing.
Missive allows you to bring your own AI key and choose your own model. That means if you want to use a specific model for drafting emails versus triaging, you can fine tune that experience.
Since Missive is a collaborative inbox meant for your whole team, your AI assistant can assign and triage emails to the right people, instead of just sorting it in your own inbox. Imagine an old client emails you because you have a long standing relationship, but it's a question meant for your support team.
The same is true for drafting replies, instead of just drafting replies based on your own personal inbox, Missive's AI automations can help your whole team auto-draft replies to customers.
That's critical if you're handling hundreds if not thousands of emails every day. You can get the most common questions taken care of by an AI assistant.
Where Missive lacks compared to Fxyer is it's scheduling and calendar functionality. Missive has a calendar that's good for team visibility but it's lacking any AI assistant features.
From a pricing perspective, Missive is comparable to Fyxer at $24/user/month for plans that include AI automations.
If you're looking for an AI-powered email client, essentially Fyxer but with more features, then Shortwave might be a good fit.
Shortwave has all of Fyxer's AI assistant features right out of the box—auto-drafting emails, default AI categorization, calendar scheduling—and they have some team collaboration features as well.
Since Shortwave is it's own email client, it looks and feels quite different from Gmail and Outlook. It also only supports Gmail accounts. They say there's a workaround for Microsoft 365, Outlook and other email providers, but it's essentially forwarding your email account to a Gmail account, to connect to Shortwave.
If you don't want or need the level of customization and flexibility that Missive has, you don't care to BYOK (Bring your own keys), and you use Gmail/Google Workspace—Shortwave could be a good Fyxer alternative for you.
From a pricing perspective, Shortwave is the exact same pricing as Missive at $24/user/month for plans with full fledge AI functionality.
If you mostly loved Fyxer for it's ability to sort and organize emails, there are AI-powered tools like Clean Email that focus exclusively on that. And for your drafting needs, you can use Copilot or Gemini (depending on if you're a Gmail or Outlook user) as your AI assistant to help draft the occasional email.
Like Fyxer, Clean Email is a tool that works within your existing email client. It has some predetermined categories that it will suggest and label your emails as, and it can learn your preferences over time.
Copilot is a general AI-assistant that comes free with the Microsoft suite. You can use simple prompts like: Check for typos and make it more professional.
Or more complex prompts like:
You're an executive assistant replying to emails on my behalf. Make sure to take into consideration the existing tone of the conversation and match it. If it's a customer or prospective client asking about a specific product question, use https://learn.missiveapp.com/ to find the answer. Do not make up any information.
From a pricing perspective, Clean Email is $9.99/month/email account and Copilot has a free plan typically included in your Microsoft 365 subscription, with Pro plans starting at $30/user/month.
An alternative to Clean Email and Copilot would be SaneBox and Gemini. Incredibly similar functionality and features, with minor differences around user interface. Gemini would also be a better fit for anyone already in the Gmail/Google Workspace ecosystem.
Where SaneBox stands out in comparison to both Clean Email and Fyxer is it's third party integrations. By offering connections to other popular tools like ToDoist, SaneBox allows you to create basic automated workflows within your inbox. Something in between Missive's super flexible and powerful automations and Fyxer's one and only integration to HubSpot.
From a pricing perspective, SaneBox starts at $7/user/month with some usage limits. Google's Gemini has a free option, with paid plans starting at $19.99/month
Fyxer AI offers a compelling solution for tackling email management, seamlessly integrating with your Gmail or Outlook to help you regain valuable time. Its strengths in triaging emails, drafting replies, and note-taking make it a strong contender in today’s crowded AI productivity tool landscape.
However, it’s worth considering various alternatives like Gmelius, Missive, or Shortwave, each bringing unique features and interfaces that could better align with your specific needs.
As AI productivity tools continue to innovate and redefine how we interact with our inboxes, exploring your options will ensure you find the perfect fit to enhance your productivity.
March 25, 2025
Outlook vs Gmail for Business: Which is better?
Welcome to the great business email debate—Gmail or Outlook?
Welcome to the great business email debate—Gmail or Outlook?
Emails are the lifeblood of many businesses. They’re how people inquire about your services, it's how you communicate with clients and vendors, and maybe it's even how you communicate internally with your team.
We'll be doing an in-depth analysis of the two big email providers (Gmail vs Outlook). And give you the information you need to make a decision on which email service you'd like to build your communication system from.
We'll be going over:
There are two ways to create an email with Google.
You can either have a free, personal email address that ends in @gmail.com, with limited storage (15gb across your Google Suite), or you can pay for Google Workspace (Gmail for business) and create an email address with your business domain: @yourcompany.com, have more storage, and more admin/security controls over your email service.
The Google Workspace business plans vary:
Whether you have a Gmail account or a Google Workspace account, your inbox will look similar.
This is where Google shines. Their real-time collaborative documents were a game changer when they launched back in 2006 and has become the preferred tools for many organizations since.
When looking at Gmail's security measures for Google Workspace accounts, here are two that stand out:
Gmail uses TLS for email transit and has encryption at rest and in transit.
With over 1.8 billion Gmail users worldwide, there are some very well known issues and tradeoffs within the Gmail's functionality. Here are three common ones:
Like Gmail, Outlook is Microsoft's free, personal email service; Microsoft 365 is essentially Outlook for business, equivalent to Google Workspace.
Here's an overview of the Microsoft 365 plans (assuming an annual payment, as of April 1, 2025):
With thousands of enterprise customers, Outlook's security and privacy are tuned for those standards.
And just like Gmail, Outlook uses TLS encryption for email in transit. And data at rest is also encrypted.
As with most decisions in life, it depends.
Google Workspace is collaborative at its core, though its shared inbox and email automation options are more limited.
Microsoft Outlook is more robust in it's DNA overall, but can feel overly complex and lacking in modern design.
If your business prioritizes simplicity and collaboration with clients, team members, and vendors—I would err on the side of Gmail and Google Workspace.
If you work in a field with a lot of sensitive information (i.e. law, accounting, etc), then I would err on the side of Outlook and their very high standard for security controls.
Whether you choose Gmail or Outlook, there are some business email hygiene factors to follow:
Neither Outlook or Gmail was really designed for teams. They added on some lightweight features (shared mailboxes), but if you truly live in your inbox everyday, replying to clients, team members, and vendors—you'll want something designed specifically for team collaboration and shared inboxes.
That would be us—Missive!
Missive is an email client that sits on top of your chosen email service—whether that's Gmail, Outlook, Yahoo Mail, or Apple Mail.
It has all the features that are loved in Gmail and Outlook—labels, rules, snoozing, but supercharged with more functionality. Including AI powered rules that allow for auto-translation, auto-labeling, and so much more.
But don't just take our word for it, here's Arif, a lawyer and long time Outlook user, who recently signed up for Missive:
When I open Missive, I can hit Inbox Zero quickly. I never had that feeling with Outlook.
And here's Pat, a property manager and Gmail user, who recently signed up for Missive:
We’ve tried so many shared inbox solutions. Missive was unexpectedly powerful. Suddenly, we weren’t scrambling over lost emails or letting days slip by.
So whether you're Team Gmail for business or Team Outlook for business—you can try Missive today and get the best collaborative email client for businesses.
