If you run a solo practice, the inbox is usually the first thing to go. Not because you’re disorganized, but because there’s no one else to hand it to. The email piles up while you’re in a deposition or drafting an agreement, and by the time you sit down to it, answering email has become the job instead of the thing that lets you do the job.
Solo and small-firm lawyers shared what tools they’ve tried, what stuck, and what turned out to be a waste of money. A pattern emerged from these conversations: these AI tools do not all do the same thing, and confusion over what product has each feature makes it easy to spend money on programs that don’t meet your needs.
The term “AI for your inbox” covers many different pain points: a filtering service, a faster email client, a drafting assistant, an autonomous tool that reads and triages before you sit down, and a feature built into software you already pay for. The problem is that referring to “AI for your inbox” does not designate which of the several products solving different problems is targeting.
Gmail with Gemini / Outlook with Copilot
The lawyers with moderate volume who mostly needed help drafting the occasional reply found the built-in AI was enough. Gemini and Copilot will generate a draft if you ask for one. The complaint was consistent: you have to ask, every time, with no awareness of which threads actually need the attention. Fine for someone answering twenty emails a day. Not fine if the inbox is the bottleneck on everything else.
SaneBox
The people using SaneBox for email filtering were happy with it. Attorneys say SaneBox is very good at getting noise out of the way (i.e., routing newsletters and other low-priority threads somewhere out-of-the-way). The result is a cleaner email inbox, which helps you to write every email yourself. If clutter is your first priority problem, SaneBox is worth it. However, it does not draft emails at all. Attorneys who went into SaneBox hoping for drafting help were disappointed. You can try SaneBox for one month free using this referral link.
Superhuman
This one gets more attention in legal circles than the people who’d actually used it thought it deserved. The interface is fast and the keyboard shortcuts are good if you want to move through email quickly. The AI drafts, they said, are competent but generic. You’re paying around $30 a month for a faster email client, which most of the solo operators I talked to decided was not their problem.
Shortwave
A Gmail client built around AI from the ground up. The lawyers using it liked that it bundles mail, summarizes threads, and learns your voice over time through its Ghostwriter feature. The trade-off they flagged: it replaces the Gmail interface entirely, so there’s a migration period, and it’s Gmail-only. The Google Workspace users were the ones who got value out of it, helped by the fact that it has a free tier to test first.
SparkMail
SparkMail was popular with cross-platform users. It works in both Gmail and Outlook. Its AI Compose feature generates full drafts and adjusts tone. The limitation that came up: a credit system that caps your AI interactions per month. The lawyers drafting twenty-plus emails a day burned through the allowance before the month was out. Fine for moderate volume, frustrating as a primary drafting tool.
Fyxer
The lawyers who didn’t want to learn a new email client gravitated here, since it overlays on top of Gmail or Outlook instead of replacing them. It sorts incoming mail into categories, drafts replies in your tone, and will join video meetings to produce follow-up notes. The ones who wanted drafting, organization, and meeting summaries without subscribing to three separate tools said it was the most consolidated option. Around $18 a month at the entry tier.
Serif
The tool that came up most among lawyers whose actual problem was drafting volume. It pre-drafts replies to incoming threads and has them waiting when you open your inbox, and it works inside Gmail or Outlook. The catch they all mentioned: setup takes more effort than the others, and it needs about a week of use before the drafts start sounding like you. You also have to configure what it’s allowed to touch, which threads get flagged, what never gets drafted without review. After that, they said, the drafts are mostly usable with light editing. It doesn’t integrate with Clio yet, so matter updates stay a manual step.
What the lawyers who got it right asked first
The clearest thing to come out of these conversations was that the people who were happy had figured out their actual bottleneck before they bought anything. Inbox clutter and drafting volume are different problems, and the tools that solve them are not the same. If your inbox is just full, you want filtering. If you’re spending your evening writing the same five replies you write every week, you want drafting. If you’re losing time deciding what even needs a response, you want triage. The ones who were frustrated had bought for the problem the marketing copy assumed they had, not the one they actually had.
One caution every lawyer raised, and it matters more for us than for the general audience these tools market to: none of them should send anything on your behalf without your review, and you should confirm that in the privacy policy before connecting any tool that can read and write your mail. For a practice handling client confidences, that’s not a setting to skip.
If you don’t know which problem is yours, spend a week noticing where the time goes. The lawyers who’d done that said the answer was obvious once they were looking for it.