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How to export Gmail for a lawsuit
When a dispute turns serious, your Gmail is usually the paper trail — years of it. Google's free Takeout service exports your complete history as an .mbox file: the standard format that mail-review and e-discovery tools (and tech-savvy law firms) work with. Here is the exact procedure, and the habits that keep the export usable as evidence.
Updated 2026-07-20 · Works for personal Gmail and most Google Workspace accounts
Open Google Takeout
Go to takeout.google.com and sign in with the account whose e-mail you need. If you use several addresses, you'll repeat this once per account.
Click “Deselect all”
Takeout offers every Google product. You only want e-mail, so deselect everything first.
Tick only “Mail”
Scroll down the product list and tick Mail. Leave All Mail data included as it is — for a legal case you want everything, not a guess about which labels matter (see the FAQ below on why).
Create the export
Click Next step, choose Export once and the .zip file type, then Create export. If your mailbox is larger than the split size, Google simply produces several numbered ZIPs — that's normal.
Wait for Google's e-mail, then download
Google prepares the archive in the background and e-mails you a download link — minutes for small accounts, several hours (occasionally a day) for a decade of mail. Download every ZIP it produced.
Unzip and find the .mbox file
Inside the archive, your mail is at Takeout/Mail/ — usually one file called All mail Including Spam and Trash.mbox, or one .mbox per label if you selected specific labels. Those .mbox files are your complete, portable e-mail archive.
What to do with the .mbox file
An .mbox is an archive, not a workspace: 40 GB of raw messages doesn't answer “which of these e-mails win my case?”. The usual next step is loading it into something searchable — an e-discovery platform, a mail client like Thunderbird, or a review tool — so that you (and your attorney) can search, filter by person and period, and pull out what matters. Our companion guide How to organize ten years of e-mail for your lawyer covers that stage, including what attorneys actually want to receive.
You have the export — now find the evidence in it
ExhibitMail turns an .mbox into a searchable, scored body of evidence: upload the file, describe the dispute in plain language, and AI ranks every message by how much it matters to your case. Ask questions and get answers cited to the source e-mails. Invite your attorney for free.
Start your case — freeFree to start: upload and try it on your own e-mail before paying anything. Every case encrypted at rest under its own key.
Frequently asked questions
How long does a Takeout export take?
Your part takes about ten minutes. Google then builds the archive in the background: small accounts in minutes, ten-plus years of mail in several hours, occasionally a day. The download link arrives by e-mail.
Does the export include attachments?
Yes — every message is stored complete: attachments, headers, dates, all recipients. That completeness is exactly what makes an exported e-mail usable as evidence later.
What is an .mbox file, exactly?
A single file holding your messages in full, in an open format mail software has used for decades. Crucially it preserves each message's headers — sender, recipients, timestamps, routing — which is what lets an e-mail be verified afterwards. A forwarded copy or a screenshot preserves none of that; see using e-mails as evidence.
Should I export only the labels that seem relevant?
No — export everything. You rarely know in advance which e-mails will matter legally, filtering is far safer afterwards in a searchable tool, and a visibly incomplete export invites questions from the other side. Per-label exports are a fallback for mailboxes too large to download in one piece.
Does the export include my sent mail?
Yes — with All Mail data included the archive contains everything: Inbox, Sent, Archive and every label, in one file. No separate Sent export needed.
I read my Gmail in Apple Mail or Outlook — export from there instead?
No — use Takeout anyway. Desktop clients export their local cache, which is often incomplete (partial sync, storage optimization). Takeout exports directly from Google's servers and is always the complete mailbox.
My Gmail is a company (Google Workspace) account — does this work?
Usually yes, with the same steps — unless your administrator has disabled Takeout. In that case the admin can export your mailbox from the Google Admin console, or temporarily enable Takeout for your account.
The other side's e-mails aren't in my mailbox — can I get them?
Your export contains your half of the correspondence — which includes everything they sent you. E-mail that never touched your account is obtained through the discovery/disclosure process in your jurisdiction; that's a question for your attorney.
This guide is general information about exporting e-mail, not legal advice. For what to do with the evidence in your specific case, talk to your attorney.