# Page Not Found

The URL `files/Xvbt7gSIT92Td4Z737dF` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Contact Suppression and Exclusion](https://docs.emaildelivery.com/docs/funnels/contact-suppression-and-exclusion.md)
- [What you can do with funnels](https://docs.emaildelivery.com/docs/funnels/what-you-can-do-with-funnels.md)
- [Augment your subject line with a preheader](https://docs.emaildelivery.com/docs/funnels/augment-your-subject-line-with-a-preheader.md)
- [Velocity MTA FAQ](https://docs.emaildelivery.com/docs/faq/velocity-mta-faq.md)
- [Adding a funnel to an opt-in subscriber form](https://docs.emaildelivery.com/docs/funnels/adding-a-funnel-to-an-opt-in-subscriber-form.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://docs.emaildelivery.com/docs/funnels/contact-suppression-and-exclusion.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://docs.emaildelivery.com/docs/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://docs.emaildelivery.com/docs/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/docs/funnels/contact-suppression-and-exclusion.md`).

You may also use `Accept: text/markdown` header for content negotiation.