Set up your Instantly Unibox export

Everything from install to downloaded file takes about two minutes.

1. Install the extension

1. Add ReplyVault from the Chrome Web Store (works in Chrome and Edge).
2. Click the ReplyVault icon in your toolbar — the exporter opens in a full tab. Pin the icon (puzzle-piece menu → pin) if you don't see it.

2. Get your Instantly API key

Plan requirement: API keys need an Instantly plan that includes API access — currently Hypergrowth and above. On Growth or trial accounts the API section is locked (no "create key" option, or an upgrade prompt in its place), so ReplyVault can't connect on those tiers. On the Growth plan and want this anyway? Email support@reply-vault.com and we'll notify you if a no-API version ships.

1. In Instantly, open Settings → Integrations → API.
2. Create (or copy) a v2 API key.
3. Paste the key into ReplyVault and press Validate & continue.

Your key is stored only in your browser and sent only to Instantly's API — ReplyVault has no servers and receives nothing. See the privacy policy.

3. Export

1. Optionally filter by date range (UTC), campaign ID, or direction (received replies only, sent only).
2. Pick CSV (opens cleanly in Excel/Sheets, UTF-8) or JSON.
3. Press Start export, watch the progress bar, then Download file.

Export options

• Excel-safe CSV (on by default): cells starting with = + - @ get a leading apostrophe so spreadsheets show them as text instead of running them as formulas. Turn it off if you need byte-exact raw values for another tool.
• Include scheduled emails (off by default): scheduled sends are queued mail, not history, so they're excluded unless you tick this.

Troubleshooting

How fast should the export run?

Instantly limits its email API to 20 requests per minute, and each request returns up to 100 emails — so expect about 2,000 emails per minute. That's Instantly's ceiling, not ours: a 10,000-email Unibox takes ~5 minutes, 100,000 takes ~50. ReplyVault paces itself exactly at the limit and backs off automatically if Instantly asks it to slow down. Leave the tab open in the background; if it closes, you'll be offered to resume where it stopped.

"That key was rejected (401)"

The key is wrong or was deleted. Copy it again from Instantly → Settings → Integrations → API. Make sure it's a v2 key.

"This workspace has no active plan (402)"

Instantly's API needs an active plan with API access on the workspace the key belongs to — currently Hypergrowth and above (see the plan requirement).

The export stopped partway

Progress is saved continuously — both the position and the already-fetched emails. Reopen ReplyVault and it will offer to resume the interrupted export; nothing is refetched. Interrupted exports are kept for 7 days, then discarded so you don't resume a stale snapshot.

My license key isn't recognized

Keys are validated against our payment provider (Polar). Check for typos and paste the key exactly as it appears in your purchase email. If you're offline, a previously validated key keeps working for 7 days. Still stuck? Reply to your purchase receipt email and we'll sort it out.

Excel shows odd characters

Open the CSV by double-clicking it (the file carries a UTF-8 BOM specifically so Excel detects the encoding). If you use Excel's legacy "import text" wizard instead, choose UTF-8 as the encoding.

What's in the file

One row per email: timestamp, direction, campaign_id, campaign_name, from, to, cc, subject, body_text, body_html, thread_id, message_id, eaccount and internal IDs. The JSON export carries the same fields as an array of objects.