E-mail checker

Find out if an e-mail or mail domain is disposable / temporary or blacklisted / spam

Try out our public API

Check instantly, securely and privately if your users are using fake emails or they are listed as disposable accounts for one use only.


										Request: GET https://us.host-tools.com/api/mail/domain/example.com

The Email check API is open for the public and can be used under secure requests to quickly get results and improve the quality of your clients rapidly.


										Request: GET https://us.host-tools.com/api/mail/email/me@example.com

Frequently asked questions

The Email and Domain Checker tool allows users to verify if an email or email domain is associated with fraudulent activities, spam, or blacklisted status. By entering an email address or domain, users can initiate a query to check against known databases of fraudulent emails and blacklisted domains.

This tool is valuable for individuals, businesses, and website administrators who want to protect their online platforms from potential threats and ensure that their email communications remain secure and trustworthy. Users can also opt to check against public blacklists (RBL) to enhance the level of scrutiny.

The Email and Domain Checker tool works by querying a comprehensive database of known fraudulent emails, spam emails, and blacklisted domains. When you enter an email address or domain and initiate the check, the tool searches the database for any matching records.

If a match is found, the tool will display relevant information indicating whether the email or domain is flagged as suspicious or blacklisted. If the "Check RBL (blacklists)" checkbox is selected, the tool will perform an additional check against public blacklists to provide more comprehensive results.

Please note that the response time may be slightly longer when the RBL checkbox is checked, as it involves an additional query to external blacklists. However, this option provides users with a broader assessment of potential risks associated with the email or domain in question.

Yes, the Email and Domain Checker tool is integrated with a public API that provides comprehensive data for detecting fraudulent emails and blacklisted domains. The API allows users of the tool to access the latest and most up-to-date information to assess the legitimacy of email addresses and domains.

Users can take advantage of this public API without any usage limitations (as of now). The API's continuous updates ensure that the Email and Domain Checker tool remains a powerful resource for identifying potential threats and protecting against spam and fraudulent activities.

On the website, you will find three updated counters displayed daily:

  • Total Domains in Database: This counter shows the current total count of domains available in the database, providing an overview of the data size.
  • Domains Inserted in the Last Month: This counter displays the number of new domains added to the database within the past month, showing the database's growth rate.
  • Total API Detections: This counter indicates the total number of detections made through the public API. It represents the combined instances of flagged fraudulent emails and blacklisted domains found by users utilizing the API.

These counters offer users valuable insights into the scope and impact of the database, as well as the effectiveness of the Email and Domain Checker tool and the API in detecting potentially malicious entities.

Yes, the Email and Domain Checker tool is designed to be GDPR (General Data Protection Regulation) compliant, and user privacy is a top priority. The tool operates based on the principle of data minimization, ensuring that only essential information is collected and processed for the intended purpose.

When you use the tool to check an email address or domain, it does not retain or store any personal data associated with the query. The tool's design ensures that user data remains anonymous and is not used for any other purposes beyond the immediate query.

For more details about how user data is handled and protected, we encourage users to review the website's privacy policy, which outlines the specific data processing practices and compliance measures.

The Email and Domain Checker tool endeavors to provide accurate and reliable results; however, it cannot guarantee 100% accuracy. The effectiveness of the tool depends on the quality and comprehensiveness of the underlying databases and public blacklists used for analysis.

While the tool aims to detect fraudulent emails and blacklisted domains, it is possible that some newly emerging threats may not be immediately flagged. Additionally, the presence of an email or domain in the database does not necessarily indicate malicious intent, as legitimate entities may also be listed due to false positives.

Users are encouraged to interpret the results in conjunction with other security measures and contextual information to make well-informed decisions. Regular updates and improvements to the tool and the underlying data sources help enhance accuracy over time.

Absolutely! We value user feedback and contributions to maintaining the accuracy and effectiveness of the Email and Domain Checker tool. If you encounter false positives or have additional information to contribute, you can report such instances through the designated feedback mechanism on the website.

By reporting false positives, you help us refine the database and improve the tool's capabilities in detecting and identifying potential threats more accurately. Additionally, if you have relevant information about newly identified fraudulent emails or blacklisted domains, you can contribute to the continuous improvement of the tool's security features.

Together, our collective efforts help create a safer online environment and protect users from malicious activities and spam.