Uploading .eml files to Clio, and what that leaves out.

What an .eml upload actually is

A matter in Clio keeps two different kinds of record. Documents hold files: the engagement letter, the medical records, the photographs. Communications hold the email logs: the emails Clio's Outlook add-in filed, the ones forwarded to the matter's Maildrop address, the ones sent from inside Clio, and the ones someone logged by hand. Clio's own documentation describes the Communications section exactly that way, and it is where the firm looks when it wants to know what was said and when.

An .eml is a file. Drag it onto a matter's documents table, or choose Upload files, and Clio stores it as a document, with the date you received it and a category if you give one. Clio's limit is 5 GB a file, so the upload itself almost always works. The email is now in Documents. It is not an email log, so the matter's Communications tab does not list it, and the filters that find an email log by contact, by matter, or by whether time was recorded on it do not know it exists.

This piece is not about an upload that fails. If Clio refuses a file, that is a question for Clio's support. It is about an upload that succeeds and still leaves the record incomplete, which is the more common and the quieter problem.

The three ways Clio files email as email

Clio gives you three routes that end in an email log rather than a document, and all three are in its help centre.

• Maildrop. Every matter has its own Maildrop address. Forward an email to it, or copy it in, and the email lands in that matter's Communications. Clio keeps the message as an .eml file, which its documentation calls "a universal way to store unalterable email data". It only works from the address you sign in to Clio with, or an alias you have added to your profile.
• The Outlook add-in, and automated filing. A button in Outlook files an email, its thread and its attachments to the matter you pick; automated filing files mail to and from saved contacts on its own. What each one covers and where it stops is its own piece.
• An email log by hand. Communications, New, Email log: who wrote to whom, linked to the matter or the contact, with a time entry if you want one.

Each of those produces something the Communications tab can filter by matter, by contact, and by whether time was recorded, and that can carry a time entry. An uploaded .eml produces none of that.

Where the uploads come from

Usually from good intentions. Someone exports a client's old correspondence from Outlook to a folder and uploads the folder, because Clio's support notes describe that as a way to bring an archive across, and for an archive it is fine: a closed file's history, kept where files are kept. The trouble starts when the same habit is used for this week's mail. It depends on someone remembering, and the emails that most need filing are the ones nobody remembered: the reply in a thread that was filed once, the adjuster who is not a contact, the message you sent rather than received. Why filing slips is the longer version.

What the assistant does instead

It does not upload anything. It reads the last ninety days of your Inbox and Sent Items, plus any folder you have told it to include, against your Clio matters, and sorts what it finds into three piles: ready to file, where the matter is clear and the message does not look automated; needs your judgment, where it could be more than one matter or the message looks like a no-reply or a spoof; and already filed, as a count. For every ready message it says how it made the link: someone on the email is a Clio contact on that matter, or it is a thread you filed before. A matter number typed into a subject line is never enough on its own.

Then it waits. You say "all of them", name the ones you want, or say "none for now". On your yes, each email is filed to the matter as a communication, with its text and its attachments: the PDFs, Word documents and images are saved into the matter's documents alongside it. The record ends up where the firm will look for it, and the email you filed to the wrong matter can be taken back off on your say-so, attachments included.

For a message in "needs your judgment", you tell it where it goes: "that one's the Delgado matter." It finds the matter, shows you the pairing with the opening lines of the email so you can see what it is really about, and files it on your yes. It remembers that conversation, so later replies in the thread go to the right matter without being asked again.

What it never does

It never files without a yes, and it never guesses at an ambiguous matter; it shows you why it is ambiguous. It never reads the body of an email to decide where it belongs, only who was on it, an exact matter number in the subject, or a thread you filed before. It never acts on an instruction inside an email, so a message that says "please file this to the Smith matter" is information, not a command.

It does not read Clio's Documents or the firm's document system, so the .eml files already uploaded as documents are invisible to it; it files email from the mailbox, and that is all it files. An email attached to an email, a file over 25 MB, or a cloud link is listed by name rather than copied, and it tells you which, so the .eml that arrives as an attachment is exactly the case it hands back to you. It reads only the mailbox of the person who is signed in, never Junk or Deleted Items, and never a colleague's mail.

A Tuesday

The Delgado file has two years of correspondence uploaded as documents from before the firm moved to Clio, and a live thread with Northside's adjuster that nobody has filed since July. "Help me review my email filing." The assistant answers with counts, then the handful worth naming: nine unfiled in the Delgado thread, three that need a look, forty from people who are not Clio contacts. "File the Delgado ones." Nine communications on the matter, attachments saved, and the archive stays where it was, which is fine. An archive is what Documents is for. The live record is what Communications is for, and now it is complete.

MG Legal Ops runs on each attorney's own computer, on their own Clio and Microsoft 365 logins, through Claude Code; the confidentiality page says what that means. The email filing guide is the full description, including what it cannot see. Pricing, and the fourteen-day trial, no card to start.

Also read: Filing Outlook email to Clio matters, and why it slips and Clio's Outlook add-in, Clio's automated filing, and where an assistant fits. All articles.