Connect with our users on Yahoo, AOL or Verizon Mail. Get commercial IMAP/SMTP access via oauth2, send rich & interactive emails and learn about deliverability best practices.

Developer Access

Access Requests

Access to Verizon Media’s Mail services is one of the top requests we receive from the application developer community. We welcome interesting ideas and products which aim at elevating the email experience for our customers.

While we no longer support proprietary Mail API’s we are happy to provide access through standard interfaces such as IMAP, CardDav, and CalDav with Oauth2 support, subject to our policies including the restrictions in this document.

To protect the security and privacy of our users, those scopes are not available for self-served setup in the developer console.

Instead, third parties providing applications or services which require access to our consumers’ data on their behalf have to apply for access and provide evidence that they are honoring our policies and guidelines.

Developers can request commercial access to IMAP, CalDav, and CardDav for AOL, Yahoo and email consumers by filling out this form.

Developers can also reach out to for any questions.

Please be sure you read and understand our policy before reaching out.

Our Policy

Requesting Access

Developers must be honest and accurate in their request and description of their application or service they are requesting access for. Developers need to provide clear information about the identity of the application or service and the requestor. Developers must accurately and thoroughly describe their application and services and how they will use and control data obtained through our APIs.

Use of APIs

Developers may only use the approved APIs to provide services directly to our customers. Developers are not allowed to build services on top of our APIs which are intended to re-create the functionality those APIs provide and offer them for use by other non-approved third parties.

Use of Data

Developers may only use the data available through our APIs to provide relevant, user-facing functionality aimed at improving or augmenting the email, calendar and contact experience through the approved application. For example, using the data for the user-facing functionality to provide consumer benefits of flight or expense tracking is permitted. Developers may not transfer or sell the data to other third parties. In addition, the data may not be used to create audience or user targeting segments for advertising, profiling for content personalization, monetization, or email engagement tracking purposes or for other purposes not directly related to the user-facing functionality. Sharing data with third parties to provide the user facing functionality or sharing data created by such functionality with third parties for consumer research or other reasons is not permitted.

Developers Privacy Policy and Disclosures

Developers’ privacy and security policies and all related in-product notifications need to be easily accessible to the user and accurate. Developers’ policies must disclose all manners in which the application or service is collecting and using data received from Verizon Media, what data is collected and used and how users can control that access. In addition developers must comply with all applicable laws and regulations.

Developers’ application must be honest and transparent with users and provide the exact purpose for requiring access to Verizon Media mail data. The application or service must notify users and collect consent for each use case requiring access.


Developers are required to demonstrate that their application and services meet minimum security standards to mitigate the risk of data breach and ensure the secure handling and storage of data obtained through Verizon Media’s APIs.


Developers agree to use our APIs in accordance with our APIs Terms of Use and any additional terms that we require Developers agree to in order to access our APIs. If a Developer is found not to be in compliance with any of the foregoing terms, this policy, or any other Verizon Media policy that is applicable to the APIs, without limiting any other remedies Verizon Media may have, Verizon Media may revoke or suspend the Developer’s access to the APIs and other Verizon Media products and services.

Unless otherwise prohibited, Verizon Media reserves the right to revoke access to the APIs at any time and to impose rate limiting if appropriate or necessary.


For details on how to use and integrate with our Oauth2 implementation, please refer to

Richer Experience

For details on this documentation, please refer to Promotions & and AMP for Email


If you are sending bulk email to AOL, Yahoo or Verizon consumers and are interested in sending best practices, our bulk email guidelines or need to reach our team we encourage you to visit our postmaster site.

Other Resources

Follow our Yahoo Mail Blog to learn about the latest updates to our consumer experiences.

Our postmaster blog keeps you informed about changes and updates related to our email infrastructure and sender community support.

If you have further questions, please contact us at