Verifying your email address

Verifying your primary email address ensures strengthened security, allows GitHub staff to better assist you if you forget your password, and gives you access to more features on GitHub.

この記事の内容

About email verification for personal accounts

You can verify your email address after signing up for a new account, or when you add a new email address. If an email address is undeliverable or bouncing, it will be unverified.

If you do not verify your email address, you will not be able to:

  • Create or fork repositories
  • Create issues or pull requests
  • Comment on issues, pull requests, or commits
  • Authorize OAuth app applications
  • Generate personal access tokens
  • Receive email notifications
  • Star repositories
  • Create or update projects
  • Create or update gists
  • Create or use GitHub Actions
  • Sponsor developers with GitHub Sponsors
  • Accept organization invitations

警告

  • 使い捨てのメールアドレスサービス（一定期間後に期限切れになる一時的なアドレスでメールを受信できるようにしてくれるサービス）からのメールアドレスは検証できません。 メールアドレスをプライベートにしておきたいなら、GitHub が提供する noreply メールアドレスを使ってください。 詳しくは、「Setting your commit email address」をご覧ください。
  • あなたがメンバーになっているOrganizationがメール通知を承認されたメールドメインに制限しているなら、メールアドレスを検証して、そのドメインでOrganization内のアクティビティに関するメール通知を受けるようにしなければなりません。 詳しくは、「Organizationのメール通知の制限」をご覧ください。

About email verification for マネージド ユーザー アカウント

For Enterprise Managed Users (EMUs), email addresses are no longer automatically verified. This prevents unauthorized access and potential data leaks from third-party GitHub Apps and OAuth applications that rely on email addresses as a primary identifier.

メモ

If you are a member of an マネージド ユーザーを含む Enterprise and your account was created after August 1st, 2024, your email address is unverified by default.

Having an unverified email address does not affect most actions you can take on GitHub. However, we recommend email verification to prevent potential exploitation of third-party GitHub Apps and OAuth apps which may not have followed our best practices around secure authentication methods for apps (see OAuth アプリを作成するためのベスト プラクティス and GitHub App を作成するためのベスト プラクティス).

Until you verify your email address, your account will use a placeholder email address with your enterprise's shortcode appended for certain operations. For example, the ユーザーの REST API エンドポイント and 電子メール用の REST API エンドポイント will return email+shortcode@domain.com. In rare cases, you may find that your company's email provider does not handle the placeholder email correctly, or that the placeholder prevents you from accessing some third-party GitHub Apps and OAuth apps.

You cannot verify an email address for your マネージド ユーザー アカウント if the email address is already verified by another account on GitHub.com. To verify the email, you will need to unverify the email address on the conflicting account, then verify it for your マネージド ユーザー アカウント. See Changing your primary email address.

Once you verify an email with a マネージド ユーザー アカウント, you won't be able to use the email to sign up for a personal account on GitHub.com.

メモ

If you need to use the same email address for both your マネージド ユーザー アカウント and another GitHub account (for example, for innersource, open source, or other valid use cases), you must sign in to your managed user account and unverify the email in your account settings.

The email will still be linked to your managed user account, so you can continue signing in through your organization's or enterprise's identity provider (IdP). However, because the email is unverified, it may affect your access to third-party applications that identify users based solely on email address.

Verifying your email address

  1. GitHub で、任意のページの右上隅にある自分のプロフィール写真をクリックしてから、 [設定] をクリックします。

  2. サイドバーの [アクセス] セクションで、[ メール] をクリックします。

  3. Under your email address, click Resend verification email.

    Screenshot of email addresses on the "Emails" page. Under an email address, a link, labeled "Resend verification email," is outlined in orange.

  4. GitHub will send you an email with a link in it. After you click that link, you'll be taken to your GitHub dashboard and see a confirmation banner.

Troubleshooting email verification

Unable to send verification email

使い捨てのメールアドレスサービス（一定期間後に期限切れになる一時的なアドレスでメールを受信できるようにしてくれるサービス）からのメールアドレスは検証できません。 メールアドレスをプライベートにしておきたいなら、GitHub が提供する noreply メールアドレスを使ってください。 詳しくは、「Setting your commit email address」をご覧ください。

Error page after clicking verification link

The verification link expires after 24 hours. If you don't verify your email within 24 hours, you can request another email verification link. For more information, see Verifying your email address.

If you click on the link in the confirmation email within 24 hours and you are directed to an error page, you should ensure that you're signed into the correct account on GitHub.

  1. Sign out of your account.
  2. Quit and restart your browser.
  3. Sign in to your account.
  4. Click on the verification link in the email we sent you.

Email is already verified by another user

If you see the error message Error adding EMAIL: Email is already verified by another user, you must either unverify the email for the other account before proceeding, or choose a different email address to verify.

To unverify an email address, delete it in your email settings, then optionally re-add it without verifying to keep any commits linked to your account. See Changing your primary email address.

Further reading