> For the complete documentation index, see [llms.txt](https://docs.soraco.co/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.soraco.co/docs/email-framework/third-party-email-verifiers.md).

# Third-Party Email Verifiers

QLM integrates with third-party email verifiers to reject trial registration requests that are initiated from disposable or undesirable email accounts.

The supported email verifiers are:

* [Debounce.io](https://debounce.io/)
* [Zerobounce.net](https://www.zerobounce.net/)
* [Verifymail.io](https://verifymail.io/)