# Asking major mailbox providers for a reprieve {% hint style="info" %} #### I've done everything right but I'm experiencing delivery issues on my IP addresses, what can I do? {% endhint %} Most large mailbox providers provide a method for bulk senders to apply to have their sending issues remediated. When you pay a consultant for deliverability help, after they tell you the same thing you've read on the web hundreds of times in your life, they usually just go to these pages and request a pardon or at least a commutation. Google's [sender escalation form](https://support.google.com/mail/contact/gmail_bulk_sender_escalation). Yahoo's [sender support request form](https://senders.yahooinc.com/contact/#sender-support-request). Microsoft [OLC support form](https://olcsupport.office.com/) for outlook.com/hotmail.com/msn.com/live.com. You can also look into [sender certification ](https://www.validity.com/everest/sender-certification/)through Validity and see if it may be right for you. --- # 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.emaildelivery.com/docs/velocity-mta-basics/asking-major-mailbox-providers-for-a-reprieve.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.