# mailfloss

> Help center and documentation for mailfloss

## Docs
- [How we encrypt and transmit data](https://app.helpshelf.com/help/mailfloss/article/how-we-encrypt-and-transmit-data)
- [How to permanently delete email addresses from mailfloss](https://app.helpshelf.com/help/mailfloss/article/how-to-permanently-delete-email-addresses-from-mailfloss)
- [Understanding the Risks of Email Verification](https://app.helpshelf.com/help/mailfloss/article/understanding-the-risks-of-email-verification)
- [How to set Decay Protection custom mode](https://app.helpshelf.com/help/mailfloss/article/how-to-set-decay-protection-custom-mode)
- [How to verify if the mailfloss custom properties were created in HubSpot](https://app.helpshelf.com/help/mailfloss/article/how-to-verify-if-the-mailfloss-custom-properties-were-created-in-hubspot)
- [Handle custom fields and fixed typos: automated rules and exceptions](https://app.helpshelf.com/help/mailfloss/article/handle-custom-fields-and-fixed-typos-automated-rules-and-exceptions)
- [Understanding Your Credits: Subscription and Prepaid](https://app.helpshelf.com/help/mailfloss/article/understanding-your-credits-subscription-and-prepaid)
- [How to append mailfloss results to an uploaded CSV file](https://app.helpshelf.com/help/mailfloss/article/how-to-append-mailfloss-results-to-an-uploaded-csv-file)
- [How to connect Mailerlite to mailfloss](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-mailerlite-to-mailfloss)
- [How to connect the JS Widget to OptinMonster](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-the-js-widget-to-optinmonster)
- [Use mailfloss as a Zapier action](https://app.helpshelf.com/help/mailfloss/article/use-mailfloss-as-a-zapier-action)
- [Use mailfloss as a Zapier trigger](https://app.helpshelf.com/help/mailfloss/article/use-mailfloss-as-a-zapier-trigger)
- [Create a Zap - connect Zapier and mailfloss](https://app.helpshelf.com/help/mailfloss/article/create-a-zap-connect-zapier-and-mailfloss)
- [Verification options for non-supported ESPs](https://app.helpshelf.com/help/mailfloss/article/verification-options-for-non-supported-esps)
- [How to connect the JS Widget to InstaPages](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-the-js-widget-to-instapages)
- [How to connect the JS widget to ClickFunnels](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-the-js-widget-to-clickfunnels)
- [How to connect the JS widget to Convertkit](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-the-js-widget-to-convertkit)
- [How to connect the JS widget to Sleeknote](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-the-js-widget-to-sleeknote)
- [How to connect the JS widget to Leadpages](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-the-js-widget-to-leadpages)
- [How to connect the JS widget to OptiMonk](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-the-js-widget-to-optimonk)
- [How to connect the JS widget to Hellobar](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-the-js-widget-to-hellobar)
- [How to install the Scripts n Styles plugin on WordPress](https://app.helpshelf.com/help/mailfloss/article/how-to-install-the-scripts-n-styles-plugin-on-wordpress)
- [How to connect the JS widget to Sumo](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-the-js-widget-to-sumo)
- [How to connect the JS widget to a plugin in WordPress](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-the-js-widget-to-a-plugin-in-wordpress)
- [Do you have a VAT?](https://app.helpshelf.com/help/mailfloss/article/do-you-have-a-vat)
- [How to use Custom Fields or Tags to Unsubscribe Contacts](https://app.helpshelf.com/help/mailfloss/article/how-to-use-custom-fields-or-tags-to-unsubscribe-contacts)
- [How to connect the JS widget to Mailchimp](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-the-js-widget-to-mailchimp)
- [How to connect the JS widget to Wisepops](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-the-js-widget-to-wisepops)
- [How to connect the JS widget to GetResponse](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-the-js-widget-to-getresponse)
- [How to connect the JS widget to Convertful](https://app.helpshelf.com/help/mailfloss/article/how-to-connect-the-js-widget-to-convertful)
- [Does mailfloss detect and handle spam bots?](https://app.helpshelf.com/help/mailfloss/article/does-mailfloss-detect-and-handle-spam-bots)
- [How to install and use the mailfloss Google Sheets extension](https://app.helpshelf.com/help/mailfloss/article/how-to-install-and-use-the-mailfloss-google-sheets-extension)
- [How to add the Javascript widget to your page](https://app.helpshelf.com/help/mailfloss/article/how-to-add-the-javascript-widget-to-your-page)
- [Email verification Action Options](https://app.helpshelf.com/help/mailfloss/article/email-verification-action-options)
- [Email verification Frequency Options](https://app.helpshelf.com/help/mailfloss/article/email-verification-frequency-options)
- [[Action Option] Do not modify emails](https://app.helpshelf.com/help/mailfloss/article/action-option-do-not-modify-emails)
- [[Action Option] Auto-Update custom fields/tags of invalid emails](https://app.helpshelf.com/help/mailfloss/article/action-option-auto-update-custom-fields-tags-of-invalid-emails)
- [​[Action Option] Auto-Delete invalid emails](https://app.helpshelf.com/help/mailfloss/article/action-option-auto-delete-invalid-emails)
- [[Action Option] Auto-Unsubscribe invalid emails](https://app.helpshelf.com/help/mailfloss/article/action-option-auto-unsubscribe-invalid-emails)
- [[Action Option] Manually decide action on invalid emails](https://app.helpshelf.com/help/mailfloss/article/action-option-manually-decide-action-on-invalid-emails)
- [What does Custom Floss do?](https://app.helpshelf.com/help/mailfloss/article/what-does-custom-floss-do)
- [What does Aggressive aggressiveness do?](https://app.helpshelf.com/help/mailfloss/article/what-does-aggressive-aggressiveness-do)
- [What does Normal aggressiveness do?](https://app.helpshelf.com/help/mailfloss/article/what-does-normal-aggressiveness-do)
- [Typo fixer limitations](https://app.helpshelf.com/help/mailfloss/article/typo-fixer-limitations)
- [What is Auto-refill and how does it work?](https://app.helpshelf.com/help/mailfloss/article/what-is-auto-refill-and-how-does-it-work)
- [What does Superfloss do?](https://app.helpshelf.com/help/mailfloss/article/what-does-superfloss-do)
- [What is overage and how does it work?](https://app.helpshelf.com/help/mailfloss/article/what-is-overage-and-how-does-it-work)
- [Acceptable bounce rate](https://app.helpshelf.com/help/mailfloss/article/acceptable-bounce-rate)
- [Are you CCPA compliant?](https://app.helpshelf.com/help/mailfloss/article/are-you-ccpa-compliant)
- [Are you GDPR compliant?](https://app.helpshelf.com/help/mailfloss/article/are-you-gdpr-compliant)

## Search
For specific questions, search: https://app.helpshelf.com/help/mailfloss/search?q={query}

## AI Agent Access
- [Full product context](https://app.helpshelf.com/help/mailfloss/llms-full.txt): policy-checked verified documentation, or guarded-access guidance when bulk export is unavailable
- MCP endpoint: https://app.helpshelf.com/api/mcp/a8fe74c879ca (streamable HTTP) with tools: search_docs, ask, get_article, get_product_context
  Send `Accept: application/json, text/event-stream` — a compliant Streamable HTTP server answers 406 without both media types.
- [MCP server card](https://app.helpshelf.com/help/mailfloss/.well-known/mcp/server-card.json): machine-readable description of the endpoint above
- [Agent skills](https://app.helpshelf.com/help/mailfloss/.well-known/agent-skills/index.json): how to use this documentation, as an Agent Skill
- Markdown: any article URL returns Markdown when requested with `Accept: text/markdown`
AI agents have read-only access to published documentation. This MCP endpoint never creates tickets, notifications, or other account mutations.