User Guides
Developer
Blog
Changelog
Toggle Menu
Getting Started
Your Gravity Forms Account
User Guides
Gravity Forms 2.9 (beta)
Gravity Forms 2.8
Add-Ons
Developers
Hooks
Actions
Filters
Add-On Framework
Add-On Filters
MailterLite Filters
Salesforce Filters
ActiveCampaign Filters
Advanced Post Creation Filters
Akismet Filters
Agile CRM Filters
Authorize.net Filters
AWeber Filters
Breeze Filters
Campaign Monitor Filters
Campfire Filters
Capsule CRM Filters
Chained Selects Filters
CleverReach Filters
Coupons Filters
Dropbox Filters
Emma Filters
FreshBooks Filters
Geolocation Filters
GetResponse Filters
Google Analytics Filters
Help Scout Filters
Highrise Filters
HipChat Filters
HubSpot Filters
iContact Filters
Mad Mimi Filters
Mailchimp Filters
Mailgun Filters
Mollie Filters
Partial Entries Filters
Paypal Checkout Filters
PayPal Payments Pro Filters
PayPal Standard Filters
Polls Filters
Postmark Filters
gform_postmark_send_email_failed
Quiz Filters
SendGrid Filters
Signature Filters
Slack Filters
Square Filters
Stripe Filters
Trello Filters
Twilio Filters
User Registration Filters
Webhooks Filters
Zapier Filters
Zoho CRM Filters
Confirmations
Editor
Entries
Fields
Field Framework
Form Components
Form Lists
Form Object
Form Settings
Import/Export
Merge Tag Filters
Notifications
Payments
Post Creation
REST API v1
REST API v2
Rich Text Editor
Save and Continue
Styles/Scripts
System Status
Validation
gform_add_field_buttons
gform_addon_navigation
gform_admin_error_messages
gform_admin_messages
gform_ajax_spinner_url
gform_bypass_template_library
gform_calculation_formula
gform_calculation_result
gform_cdata_open
gform_checkbox_choices
gform_column_input
gform_column_input_content
gform_dashboard_title
gform_default_styles
gform_disable_ajax_save
gform_disable_auto_update
gform_disable_installation_status
gform_disable_view_counter
gform_display_disable_css_setting
gform_duplicate_message
gform_field_filter_from_post
gform_field_type_title
gform_field_value_$parameter_name
gform_filter_ui
gform_filters_get_users
gform_form_after_open
gform_form_summary
gform_form_switcher_forms
gform_get_form_confirmation_filter
gform_get_form_filter
gform_get_form_save_confirmation_filter
gform_get_form_save_email_confirmation_filter
gform_has_admin_notices
gform_is_ssl
gform_logging_message
gform_menu_position
gform_notification_note
gform_order_label
gform_post_render_script
gform_pre_form_settings_save
gform_previous_button
gform_progress_steps
gform_save_field_value
gform_submission_values_pre_save
gform_suppress_confirmation_redirect
gform_tabindex
gform_toolbar_menu
gform_upload_root_htaccess_rules
gform_visibility_options
JavaScript
Deprecated
Data Objects
PHP API
Database
Tutorials and Snippets
REST API
Knowledge Base
Postmark Filters
Articles
gform_postmark_send_email_failed
Description.