# Files and email

> Attachments on records, private files behind short lived links, file storage on disk or in a bucket, and the emails your app sends.

## Files

Any kind of record can hold files: a scan on an order, photos on a ticket, a contract on a client. A field holds one file or several.

- **Upload** from the record's form: pick one file or several. Remove one with its button.
- **Limits** per field: a maximum size (5 MB unless your app sets another) and the file types it accepts.
- **Private files.** A field can be private. Its files open only through a link valid for a few minutes, made for a signed in user who is allowed to see that record.
- **Where files live**: on the app's server disk, or in a storage bucket compatible with Amazon S3 (DigitalOcean Spaces, for example). The choice is per app.

## Email

Your app sends mail through an email server you or we provide (SMTP).

- **Sign in mails**: the code, the password reset link, the email change link, the new device alert. English and French versions are ready. Your app can change the text of each.
- **Your own mails**: an invoice, a reminder, a report. They can carry attachments, such as a PDF the app made.
- **One footer** for every mail the app sends, set once.

The sender's name and address, and the app's name and address in links, are settings of your app.

## Documents

An app can make documents (an invoice, a delivery note, a report) and offer them to print or download, or attach them to a mail. Ask for the document and its layout. The agent builds it in your app.