Disposable Email Checker

よくあるご質問

What are disposable email addresses?

Disposable or temporary email addresses are email accounts that users create to stay anonymous when signing up for online services and accounts. These emails can be easily discarded by the owner when needed. In some cases, these emails become unavailable and inaccessible to the user within a set amount of time. Temporary email addresses are also called throwaway, burner, or fake email addresses. When present in an email list, they often negatively affect email deliverability, bounce rates, and other email marketing efforts.

What is the difference between free and disposable email domains?

Free email domains, such as Gmail or Yahoo, offer email accounts that users typically sign up for as their primary and long-term emails. They are designed for ongoing communication and typically require a sign-up process.

Disposable email domains, like Guerrilla Mail, 10 Minute Mail, and Temp Mail, offer self-destructing email addresses. One of the main purposes for using these emails is to avoid exposing permanent email accounts to spam, unwanted email campaigns, and potential data leaks. Users give them out when filling out sign-up forms to receive verification emails that online services send during user registration, and they are no longer accessed after that. For this reason, using a throwaway email during user registration often results in a hard bounce and abuse of free services.

Often, users create them for privacy reasons, not wanting to show their real email address when registering for a service. But these email accounts can also pose security threats, as sometimes they are used to send phishing emails.

How to detect disposable email addresses?

You can use the checker above to test individual email addresses. Our Email Verification API provides real-time validation for cleaning up email lists. It also supports API integration into your website or application.We also have a Disposable Email Domains Database to support a robust blocking strategy for your product.

Why remove disposable email addresses from mailing lists?

Removing disposable or temporary email addresses from your email list can significantly improve the accuracy and performance of your email marketing efforts since these throwaway addresses are often used to avoid email campaigns and are a common source of high bounce rates. As a result, having them in your mailing list can harm your sender reputation and lead to poor email deliverability.

Temporary mailboxes also affect metrics like open and click-through rates, making it difficult to gauge the real engagement and effectiveness of your campaigns. Removing them ensures your mailing list is filled with genuine contacts, leading to more reliable communication and better email marketing and business outcomes.

このチェッカーは、メールアドレスが無料プロバイダー（GmailやYahooなど）のものかどうかを識別できますか？

This checker only detects disposable email addresses. You can sign up and use our Email Verification API or Lookup tool to determine if an email address comes from a free provider. The tool can also identify emails with no mail server and catch-all email addresses, which could also affect email deliverability and sender reputation, similar to temporary emails.

使い捨てメールアドレスチェッカーの精度はどのくらいですか？

Our checker delivers highly accurate results, even though no checker is 100% accurate. Ours relies on a comprehensive Disposable Email Domains Database of +150,000 known disposable email domains, which makes it one of the most accurate ones on the Internet.

データはどのくらいの頻度で更新されますか？

当社の使い捨てメールドメインデータは、チェッカーの精度と最新性を維持するため、毎日更新されています。

複数のメールを一度にチェックできますか？

This disposable email checker tool only supports individual checks. For bulk validation and email list cleanup, we recommend using our Bulk Email Verification API or Lookup.