Trails6 min read

Watched folders

Make a folder in Files and let a trail run on everything that arrives there: files and leads by email, webhook, upload or API.

By Operelio team · Updated October 23, 2026

On this page8
  1. 1.What a folder is
  2. 2.Make a folder
  3. 3.Ways in
  4. 4.Email-in: the address and who can send
  5. 5.Webhook: one lead per call
  6. 6.The trail that watches it
  7. 7.Deleting a folder
  8. 8.Frequently asked questions

What a folder is

A folder is a place in Files where files and leads arrive. You can add a file yourself, send one from your Library, email files or enquiries to the folder's own address, send one lead per call to its webhook, or upload a file through the API. A lead is one row, such as a form fill: it isn't a file, and it goes through the folder's trail on its own. Each file is a normal file in your Library, kept for your plan's retention period. The address that emailed it, and the email's subject, are removed after the same period.

Point a trail at a folder and, once the trail is switched on, it runs automatically on every file and lead that arrives. Without a trail, a folder just collects files.

Folders are on Starter and above.

Make a folder

Folders sit across the top of Files.

1

Open Files

Each folder in the workspace shows as a tile: which trail watches it, whether that trail is on, and how many files it holds.

2

Click New folder and give it a name

The name shows everywhere in Operelio, including on the trail. Name it for what arrives: Webinar sign-ups, Monday partner file, Apollo exports.

3

Open the folder

Its Files tab shows what is in it as tiles or a list, with a search box. Settings holds the name, the trail that watches it, Ways into this folder, What it takes, its email address and who can send to it, its webhook, who hears about arrivals, and Delete this folder.

Ways in

Way inHow
Add from this computerOn the folder's page, click Upload to this folder and pick the files.
Send from your LibraryOn a file in Files, use Send to folder and pick the folder, or on the folder's page click Add from your Library. Take out of folder returns it to your Library. A file is in one folder at a time.
Email it inEmail files or enquiries to the folder's address, in-…@folders.operelio.com. CSV and Excel attachments land in the folder. A PDF or Word (.docx) document lands as a CSV of its rows: a row for each line of a table in it, or one row with its text in Notes when it has no table, each row saying which page it came from. A filled PDF form becomes one row, each answer a column. An email with no file becomes one lead: a form email's lines like Name: Maya Collins fill the matching columns, and any other email becomes a row with the sender's address and name and the email's text in a Notes column.
Upload through the APIPOST /api/v1/uploads with a folderId field. Details in the API endpoints guide.
Its webhookOne lead per call, from Zapier, Make or your own code (anything that can POST JSON with the secret in a header), up to 64 KB a call. See Webhook below.
TypeformEach response, sent straight from a webhook on your form to the folder's Typeform address, signed with its own Typeform secret. See Typeform below.
Website formSubmissions from a form on your own site, sent to the folder's form address with no Zapier or form tool in between. See Website form below.

Email-in: the address and who can send

Each folder's address is on its Settings tab, under Its email address: click Show address to see it. While email-in is on, Copy its email address at the top of the folder's page copies it in one click. The address is long and random, so nobody can guess it. Treat it like a password.

Email a file to it and the .csv, .xlsx and .xls attachments land in the folder as new files, and a .pdf or .docx lands as a CSV of its rows, up to 10 from one email. Operelio ignores anything else on the email and skips a file over your plan's size limit. If Settings says email-in is not switched on for this workspace yet, the address will not receive anything, but the other ways in still work.

An email with no file is read as one lead. Auto-replies, newsletters, list and bulk mail, and bounces are recorded as not an enquiry, and make no lead.

Who can send catches files sent from the wrong account. Leave it empty to accept email from anyone who has the address. Add an address to allow one sender, or a domain such as fernwayhq.co to allow everyone at that domain. Operelio records an email from anyone else as rejected, and nothing lands. The From line on an email can be forged, so the address is what keeps the folder private.

Get a new address replaces the current one straight away, and the old one stops working without a bounce. Use it if the address has leaked, then share the new one.

Who hears about it lists the people who get a notification in Operelio when a file is emailed to the folder, or when an email to it is rejected. Files added any other way notify no one. If the list is empty, no one is told. Unlike a trail's list, it does not fall back to your admins.

Webhook: one lead per call

Its webhook, on the folder's Settings tab, takes one lead per call from Zapier, Make or your own code: anything that can POST JSON with the secret in a header. Any field names work, and the fields become the lead's columns. A list belongs in an upload or an email.

The webhook takes nothing until it has a secret. Make one, then paste it into Zapier, Make or your code. We only show a secret once, when it is made. Send it with each call in the Authorization header, as Bearer and then the secret. A call that's retried is one lead: Operelio matches it by its Idempotency-Key header when it has one, and by its exact body when it doesn't.

Each call is one lead, up to 64 KB. A folder takes up to 60 leads a minute and 1,000 an hour. Past that, leads are still taken and gathered into one job every 10 minutes.

Get a new secret keeps the old one working for 24 hours, so your senders don't break while you paste the new one in. Stop the old secret now turns the old one away at once: do this if it leaked.

Typeform can't send that header, so it has a door of its own. Under Typeform on the same tab, copy the folder's Typeform address and click Make a Typeform secret. In Typeform, add a webhook to your form with this address, and set its secret to the folder's Typeform secret. Email, phone, name and company questions fill those columns, and every other question gets its own column, named by the question. A test response from Typeform makes a real lead.

A form on your own site needs no tool at all. Under Website form on the same tab, click Make a form address, then copy the Code for your page into your page. Any field names work, and each one becomes a column. Keep the two _op_ fields: they turn bots away. A post that looks like spam waits in Held for 7 days, and never runs. Sites that can send limits which sites are taken, and the Thank-you address is where visitors go once their form is sent.

The trail that watches it

You pick the folder on the trail, not on the folder. The folder's Settings tab shows Watched by with the trail's name and whether it is on, or No trail.

Files can arrive in a folder nobody watches. When you switch on a trail for that folder, it asks whether those files go through or stay where they are.

A new file usually starts its run within a few minutes, and a lead goes through on its own as soon as it arrives. The When a trail runs guide has the timing, and the trail's history shows each arrival and what happened to it.

Deleting a folder

You cannot delete a folder while a trail watches it. Delete the trail first; pausing it is not enough. The files stay in your Library. The folder's email address and its record of arrivals are deleted.

Frequently asked questions

Can a file be in two folders?

No. A file is in one folder at a time.

Do I need a trail to use a folder?

No. A folder collects files, and its email address works, with or without a trail. Add a trail to process them automatically.

What happens to an email from someone not on the list?

Operelio records it as rejected, and nothing lands in the folder. A rejection from a sender you do not recognize means someone else has the address. Get a new one and share it again.

Which attachments count?

.csv, .xlsx and .xls each become their own file, and a .pdf or .docx becomes a CSV of its rows, up to 10 from one email. An email with no file becomes one lead.

Can I upload to a folder from a script?

Yes. POST /api/v1/uploads with a folderId field, on a plan with API access. The file lands in the folder, and a switched-on trail watching it runs on it.

How many folders can I have?

25 on Starter, 75 on Pro and 200 on Agency, per workspace. Free has no folders.

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