Documentation Index
Fetch the complete documentation index at: https://filla.io/docs/llms.txt
Use this file to discover all available pages before exploring further.
What this does
The email field maps to Airtable’s Email field type. Beyond collecting an email address, it has a full validation suite: format checking, domain blocking, typo detection, and OTP verification. Filla always validates that the value is a properly formatted email address before any other checks run. Invalid formats are rejected on both blur and submission with the message “Please enter a valid email address” — no configuration needed.Settings reference
Basic settings
| Setting | Description |
|---|---|
| Placeholder text | Hint text shown when the field is empty. |
| Default value | Email pre-filled when the form loads. |
| Force lowercase | Automatically converts the input to lowercase on every keystroke. |
Domain restrictions
| Setting | Description |
|---|---|
| Block free email providers | Reject emails from Gmail, Yahoo, Hotmail, Outlook, and 30+ other free providers. Only allows business or custom domain addresses. |
| Block disposable emails | Reject temporary/throwaway addresses (Mailinator, Guerrilla Mail, etc.). |
| Suggest corrections for typos | Show a suggestion when common domains are misspelled, for example “gmai.com” becomes a suggestion for “gmail.com”. |
Verification
| Setting | Description |
|---|---|
| Verify email with a one-time code | Send a 6-digit code to the respondent’s email. They must enter the code before they can submit. |
| Code expires after (minutes) | How long the OTP code remains valid. Default is 10 minutes. Only visible when OTP verification is enabled. |
Length validation
| Setting | Description |
|---|---|
| Minimum characters | Minimum character count required. |
| Maximum characters | Maximum character count allowed. |
| Must be unique | Reject email addresses that already exist in the field. |
How OTP verification works
When Verify email with a one-time code is enabled:- The respondent enters their email address
- Filla sends a 6-digit code to that address
- A code entry input appears on the form
- The respondent enters the code to verify
- A checkmark badge confirms verification
- The respondent can request a new code after a short cooldown
When to block free email providers
Use Block free email providers on B2B lead forms where you want to ensure respondents use a business email. This setting rejects any address from a list of 30+ common free providers including:- gmail.com, yahoo.com, hotmail.com, outlook.com
- icloud.com, me.com, mac.com
- And 25+ others
Common questions
Can I use both disposable email blocking and OTP verification?
Can I use both disposable email blocking and OTP verification?
Yes, and it’s a strong combination. Disposable email blocking prevents throwaway addresses; OTP verification confirms the respondent can actually receive mail at the address they provided.
Does typo detection block submission?
Does typo detection block submission?
No. Typo detection shows a suggestion (“Did you mean gmail.com?”) but the respondent can ignore it and submit with their original input.
What happens if the respondent doesn't receive the OTP?
What happens if the respondent doesn't receive the OTP?
They can click “Resend code” after the cooldown. Check that your inbox provider isn’t blocking Filla’s sending domain.