API Use Policy
You may use the API solely as described in this Policy to use MailerSend services and build integrations.
Last updated on September 18, 2023
Please note that throughout the Policy, "we," "us," and "our" refer to MailerSend, and "you," "your," and "yours" refer to the user.
This Policy enters into force (a) from the day you agreed with our ToU and continues for an indefinite period of time; or (b) on March 23, 2022 if you became our client before March 23, 2022 and continues for an indefinite period of time.
If there is any conflict between this Policy and the ToU, the relevant terms of the ToU shall take precedence.
1. Login to API
You can access our API using one of your account’s API tokens. Your users might log in using their API token. Users will not need to provide you with their MailerSend username or password to log in.
2. Privacy Requirements
3. Allowable Use
MailerSend does not allow you to use the API for sending spam or taking any other actions that violate our ToU. You are not allowed to attempt to hack or change the way in which the Service or API function.
We have API limits in place by the endpoint (rate limits) and for our whole API (daily quota). Hitting one of these limits is considered an excessively frequent request to MailerSend. If this occurs, we will tell you the problems with how you are interfacing with our API. However, if the abuse is too big to handle, we have the right to temporarily or permanently suspend your account with or without notice immediately. We are not required to provide you with a refund if we deem it necessary to restrict your access due to API abuse.
Subject to your compliance with this Policy, we grant you a limited, non-exclusive, non-sublicensable, non-transferable, non-assignable license to use the API to develop, test, operate and support your integration, and distribute or allow access to your integration to users of your service. You have no right to distribute or allow access to the API as a stand-alone product.
6. Ownership rights
You acknowledge that MailerSend owns all rights, title and interest in and to the Service and the API, including without limitation all intellectual property rights, and such rights are protected by international intellectual property laws. All rights not expressly granted in this Policy are withheld. You agree that you will not copy, reproduce, alter, modify, or create derivative works from the Service and the API. You own all worldwide rights, titles, and interest in the integration, except for the API, our marks, and the Service (including all intellectual property rights). If you provide feedback or suggestions about the API or the Services, then we may use such information without obligation to you.
You are responsible for implementing and maintaining appropriate technical and organizational security measures to protect and preserve the security and confidentiality of the data of your users. You must promptly report any security vulnerabilities or security incidents that you discover in writing via email to email@example.com.
You may have access to confidential information specific to the Services or API. You are only allowed to use this information to build integrations with the API. You will protect this confidential information from unauthorized use and disclosure.
We may limit your use of the API at any time. We may monitor your use of the API for compliance with these rules, and we may deny you access to the API if you violate it. We may terminate your access to our API at any time for any reason.
MailerSend reserves the right to change this API Use Policy at any time. If we decide to change this document, we will post changes on this page. All changes are effective immediately upon posting and we suggest that you check this API Use Policy periodically.