Email Filing Software for Small Law Firms: What to Check, and How to Roll It Out in Outlook
Your firm keeps its matter files in Outlook, and filing is the job that slips in a busy week. Before you buy a tool that reads client email for everyone, there are a few things to settle.
In short: if your firm runs a document management system or practice management software, use its own filing tools, because they file into the firm’s record. If Outlook is your record, check five things before you buy any filing tool: where email content goes, whether anything files before a person has seen where it goes, what mailbox access it needs, whether it works with your mailboxes, and what stays behind if you stop using it. Agree one folder convention first, decide who holds the complete matter file, then run a short pilot with a few lawyers before you pay for seats.
Do You Need Email Filing Software at All?
Start with where the firm keeps its record of a matter. If that is iManage, NetDocuments or Clio, use their own Outlook filing tools. A separate add-in that moves mail between Outlook folders doesn’t file into those systems, and Folder Suggest is no exception. Email management for lawyers and law firms covers each setup.
The rest of this page is for firms where matter folders in Outlook are the record. That is common in small firms, and the weak point is usually the backlog in the inbox and in Sent Items.
What to Check Before You Buy Email Filing Software
Ask every vendor these questions and get the answers in writing. The right-hand column shows how Folder Suggest answers them, so you can compare.
| Question | Why it matters to a firm | Folder Suggest’s answer |
|---|---|---|
| Where does email content go? | A tool that copies email elsewhere adds another party holding client communications | The AI runs on the user’s device. Mail stays in Microsoft 365, and the add-in is built not to send email content, subjects or folder names to our servers or to any AI service |
| Does it file without a person checking? | A misfiled email travels with the wrong client’s file | No. Nothing moves until the user clicks. One click files one email, or in a bulk review every email left ticked, each shown with its folder. Undo is offered after each |
| What access does it need? | IT has to know exactly what it is approving | The Microsoft Graph permission Mail.ReadWrite, which covers all mail in the user’s own mailbox and excludes sending, plus Outlook’s read/write mailbox add-in level, which Microsoft describes as broader and including sending. Folder Suggest has no code that sends email |
| Which mailboxes does it work with? | Some firms still run their own mail server or use a shared mailbox for a matter | Mailboxes hosted in Microsoft 365 and Outlook.com. Not IMAP or POP accounts, shared mailboxes, a colleague’s mailbox opened by delegation (so an assistant can’t file a partner’s mail from their own account), or Exchange servers run by the firm or a hosting provider |
| Which Outlook does it work in? | Lawyers file from wherever they read mail | Classic Outlook, new Outlook, Outlook on the web and Mac. Not the iPhone and Android apps |
| Does it learn across the firm? | Firm-wide learning can help new joiners, but it means sharing filing history | No. Each person’s suggestions come from their own folders, and nothing trains a shared model |
| What stays behind if you stop using it? | You shouldn’t need the vendor to read your own files | Your email, in ordinary Outlook folders in your own mailbox. To finish, revoke the app’s access in Microsoft and ask us to delete your account record |
These answers describe the product. They don’t settle whether a tool meets your professional obligations. That depends on your jurisdiction and your firm’s policy, so put the question to your firm’s risk or ethics lead. The privacy policy lists what our servers do store: account identifiers and email addresses, plan and seat records, usage counts, and diagnostics including error reports.
Agree a Folder Convention Before You Install Anything
A filing tool works from the folders you have, and a clear, distinct name helps it tell matters apart. Consistency helps the people who have to find things. Email management for lawyers and law firms has a folder structure to start from, with one folder per matter. For a whole firm, add these:
- The same top-level folders for everyone. For example, Active Matters, Closed Matters and Firm.
- The same rule for sent mail. Decide that replies get filed too. Folder Suggest can list Sent Items with a suggested folder beside each email, as it does for the inbox.
- Check the name on closed matters. Folder Suggest can’t exclude a folder, so a closed matter can still be suggested.
Decide Who Holds the Complete Matter File
This is the question software won’t answer for you. Outlook folders live in each person’s own mailbox. When three people work on a matter, there are three partial files, and each holds only what that person sent and received. A filing add-in tidies each of them. It doesn’t combine them.
So decide it once, for the whole firm. One workable rule is that the responsible lawyer’s folder is the file, and colleagues copy that lawyer on anything that belongs in it. Write the rule down, and include what happens when someone leaves the firm. If you find you need one shared record that everyone can search, that is a good reason to look at a document management system instead.
What Filing Software Won’t Do
A filing add-in moves email between folders and little else. Keep your existing process for each of these, because Folder Suggest does none of them:
- Conflict checks
- Retention schedules or legal holds
- Time capture or billing
- Filing documents and attachments into a matter system
- Filing mail automatically while nobody is looking at it
How to Roll Out Email Filing Across the Firm
- Check whether IT has to approve it. Some organizations only let admins approve apps that read mail. If so, your admin can approve it once for everyone from what IT needs to know. Approving installs nothing. If you set up your firm’s Microsoft 365 yourself, that admin is probably you. If an outside provider did, send them that page.
- Start with two or three lawyers on the free plan. Folder Suggest’s free plan has every suggestion feature, with a limit of 5 filed emails a day. That is enough to see whether suggestions fit your matter folders. It has more to work with once a folder holds about 20 emails and someone has filed the same sender there twice, so choose people who already have folders in use. Expect it to be least sure between two matters with the same client and correspondents, which is why a person checks each one.
- Get it to everyone. Each person can add it from Microsoft Marketplace, or an admin can deploy it to all users or to chosen groups. The install guide has both routes.
- Buy seats with the work address you use to sign in to Microsoft 365. Team seats start at 3 and come on one invoice. Normally there is nothing to assign: anyone in your organization who opens the add-in with their work account gets a seat, in the order they open it, until the seats you bought are taken. Revoke a leaver’s seat in the billing portal so someone else can take it.
- Check back after a month. Look at whether inboxes and Sent Items are actually shrinking, and whether a colleague can find a matter’s email without asking. If they aren’t, cancel from the billing portal, or revoke seats and lower the count. Seats in use can’t be removed, and anyone revoked won’t get a new seat automatically.
What It Costs
As of November 2026, on monthly billing, a seat costs €6.99 a month for 3 to 9 seats, €5.99 for 10 to 24, and €4.99 for 25 to 99. Yearly billing saves 18%. For 100 seats or more, get in touch. A sole practitioner doesn’t need seats: Pro covers one person at €7.99 a month. A two-person firm pays less with two Pro subscriptions (€15.98 a month) than with the 3-seat minimum (€20.97), though on two invoices. Current prices are on the team page.
Filing matter email in Outlook across the firm? Install it and try the free plan first, then buy seats from 3 when it fits.
See team pricingFrequently Asked Questions
What is the best email filing software for a small law firm?
It depends on where the firm keeps its record. With iManage, NetDocuments or Clio, use their own filing tools. If matter folders in Outlook are the record, look for a tool that keeps email content off the vendor’s servers, files nothing until a person has seen the destination and clicked, and leaves your email in ordinary folders if you stop using it.
Does Folder Suggest work with a shared mailbox for a matter?
No. It files within the signed-in person’s own mailbox. Shared and delegated mailboxes aren’t supported.
Does our IT team need to be involved?
Only if your organization restricts who can approve apps or install add-ins. An admin can then approve it once for everyone, and can also deploy it to all users from the Microsoft 365 admin center.
Is it safe to use on client email?
The analysis happens on the user’s device, and the add-in is built not to send email content, subjects or folder names to our servers or to any AI service. Whether that meets your obligations is a question for your firm’s risk or ethics lead, since the rules depend on your jurisdiction. This page isn’t legal advice.