How to build a case chronology from Outlook emails

A case chronology is a court-ready timeline that shows what happened, when it happened, and who was involved. You can build one directly from your Outlook emails without manually copying dates and events into a spreadsheet or document. Tallymail is a Microsoft-certified Outlook add-in on Microsoft AppSource that automatically captures email metadata, classifies messages by case, and generates chronologies you can export or refine.

Why email is the source of truth for case timelines

Every email you send or receive is timestamped and contains evidence of what was said, who said it, and when. Solicitors, barristers, and accountants already live in their inboxes. Forcing yourself to manually transcribe emails into a separate timeline tool wastes time and introduces transcription errors. The chronology you build should come from the emails themselves, not from memory or handwritten notes.

Your email archive is also complete. Unlike meeting notes or file creation dates, emails create an unbroken record of communication. If you are defending a case or proving a sequence of events, the emails are the artefacts. A chronology built from them is defensible. Starting from your inbox rather than a blank document means you are working with evidence that already exists, not reconstructing it after the fact.

How to capture emails into a case record

The practical starting point is deciding which emails belong to a matter and making sure they are linked to the right case reference. Good discipline here pays dividends later: if you classify emails as they arrive rather than in a batch at the end of a matter, your chronology stays current and you are less likely to miss something significant.

Tallymail handles this classification automatically within Outlook, matching each email to the relevant matter. Because the add-in works inside Outlook, you are not switching between your email client and a separate tool. The emails stay in your inbox where they belong, and the chronology data is built in parallel as you work. Email classification is one of the core capabilities the add-in provides, keeping the process as close to your existing workflow as possible.

Generating a court-ready timeline

Once you have captured emails for a case, the goal is a chronology in a format that is clear, dated, and attributed. The timeline should list each relevant email in date order, with the sender, recipient, subject, and a brief summary. That structure makes it straightforward to answer the question a judge or barrister is most likely to ask: when did a particular communication happen, and what did it say?

Tallymail builds this chronology from your inbox in the order emails came in and went out, ready to print or save as PDF. The chronology is a factual record of what was communicated and when, not a narrative or an interpretation. Keeping it factual and sourced directly from the emails makes it straightforward to check against the originals.

Using AI to write email narratives

A bare chronology lists dates, senders, and subjects. That is often enough. But on a complex matter with hundreds of emails, a one or two sentence summary of each message can help you spot patterns or understand the significance of an exchange at a glance.

Tallymail includes an AI narrative feature. When you click “AI Brief” on a specific email, the add-in sends the full content of that message to the AI service and returns a short summary. You are not relying on the AI to interpret the law or draw conclusions. It is summarising what was said. You decide which emails warrant a narrative. A straightforward date confirmation probably does not need one. A disputed exchange about contract terms probably does. The result is a chronology that functions both as a timeline and as a readable summary of the case as it unfolded, without requiring you to write the summaries yourself.

Getting the chronology into the file

Once your chronology is built, you can print it or save it as a PDF for a court bundle, a disclosure schedule or the client file. Your billable time goes the other way: Tallymail exports it as CSV to Clio, LEAP, Actionstep or Xero.

Before you file anything, it is worth reviewing the chronology to remove any emails that are irrelevant or duplicated, and to confirm that every entry is attributed correctly. A clean, reviewed chronology is more useful than a raw one, and the review process itself often surfaces details you had forgotten about the matter.

Keeping the chronology up to date

Cases do not end when you finish your first draft. New emails arrive, new facts emerge, and your chronology needs to stay current. The discipline of classifying emails as they arrive, rather than waiting until a deadline forces a retrospective review, is the single most effective habit you can build around case chronology work.

Because Tallymail works continuously inside Outlook, newly classified emails are added to the case record as you go. When you need an updated chronology, you export again and the new entries are included. You do not have to rebuild the timeline from scratch. This is particularly useful in litigation where disclosure deadlines are tight and facts are still being established. Your chronology grows with your case, and you can export it at any point knowing it reflects everything you have captured so far.

The most common concern: data security

Using any add-in with client emails raises a reasonable question about data handling. Tallymail connects to your mailbox through Microsoft Graph, and data is hosted in EU and UK regions. Full email bodies are read transiently and never stored, and full content only goes to the AI service when you click “AI Brief” or “Draft” on a specific message.

Tallymail is a Microsoft-certified add-in available on Microsoft AppSource, and Microsoft’s own review certified it as safe and compliant. Check your own data protection obligations and engagement terms with your clients to confirm that the tool fits your compliance requirements.

About Tallymail

Tallymail is a Microsoft-certified Outlook add-in that automatically captures billable time from emails and builds court-ready case timelines. It is built for solicitors, barristers, and accountants in the UK and US who need to turn email records into evidence and timekeeping data without manual work.