Features

File uploads

Accept attachments and have them ride along with the notification email.

Turn uploads on in the form settings, then add a file input and set the form's enctype. Attachments are delivered with the notification email; we record the filename, type, and size in your submission history but do not keep the file itself.

upload.html

<form action="https://api.formpost.ai/submit" method="POST" enctype="multipart/form-data">
  <input type="hidden" name="access_key" value="YOUR_ACCESS_KEY_HERE">
  <input type="text" name="name" required>
  <input type="email" name="email" required>

  <input type="file" name="attachment" accept=".pdf,.png,.jpg">

  <button type="submit">Send</button>
</form>

Plan	Maximum size per file
Free	Not available
Pro	10 MB
Business	25 MB

Files over the limit return 413 with a clear message rather than silently truncating the submission.