# Why do I still get bounced emails? Despite validating the best possible contact details across multiple sources that go through additional layers of specialized email verification services, sent emails may still be bounced or rejected. This can be due to one of more of the following reasons: * You're trying to reach a valid email, but the company's email policy does not allow external email addresses unless whitelisted. This is common as a way for companies to reduce spam and especially common amongst companies who use Office 365. * Your email domain reputation score is too low. * You haven't properly set up your DMARC or SPF records for your domain. You can use a tool like [this](https://easydmarc.com/tools/spf-lookup) to check. Refer to [how-to-authenticate-email-dkim-dmarc-spf](https://docs.gethyperscale.com/email-best-practices/how-to-authenticate-email-dkim-dmarc-spf "mention")for further instructions. * The person just left the company, and based on all publicly available records has not joined a new company. The email you have is still the most valid contact detail across all data sources. **If you receive any bounces, simply forward the email to and we'll credit your account for that lead.** --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.gethyperscale.com/faq/why-do-i-still-get-bounced-emails.md?ask= ``` 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. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.