新しいOutlookにアカウントを追加できません：エラーと修正

New Outlook Account Setup Troubleshooting Guide: A Comprehensive Solution

Having trouble setting up your account in the new Outlook app? This guide covers common issues and their fixes.

Common Account Addition Problems and Solutions:

Here's a breakdown of frequent problems encountered when adding an account to the new Outlook application, along with practical solutions:

1. Unsupported Email Account:

• Problem: Your email provider isn't compatible with the new Outlook.

• Solution: Confirm your email service is supported by the new Outlook for Windows. If not, you may receive an error like "We couldn't reach the email server. Please try again." or "You didn't sign up. Please try to add your email account again."

  

2. Missing Microsoft 365 Desktop License:

• Problem: Your Microsoft 365 work/school account lacks a desktop app license.

• Solution: Purchase a license that includes desktop apps, use a primary account with the correct license, or switch to Outlook on the web. An error message like "This account is not supported in Outlook for Windows due to the license provided by your work or school. Try to log in with another account or go to Outlook on the web." indicates this issue. The primary account's license determines access for other accounts.

  

3. Incorrect Account Information:

• Problem: Wrong email address or password.

• Solution: Double-check your login details. Use password recovery if needed. Outlook will prompt you for a valid email address if a typo is detected.

  

4. IMAP/POP Not Enabled (Third-Party Accounts):

• Problem: IMAP or POP access isn't enabled for third-party accounts (e.g., Gmail).
• Solution: Enable IMAP/POP access in your email provider's settings to allow Outlook access. See provider-specific instructions; for Gmail, a guide is available: How to enable IMAP access in Google.

5. Authentication Issues:

• Problem: Additional authentication steps are required but not completed correctly.
• Solution: Follow authentication prompts carefully. Use app-specific passwords or complete Two-Factor Authentication (2FA) as needed. Consult your IT department for work/school accounts.

6. Windows Single Sign-On (SSO) Problems:

• Problem: SSO configuration issues prevent account addition.
• Solution: Contact your IT department to resolve SSO configuration problems.

7. Admin-Disabled Access to New Outlook:

• Problem: Your administrator has blocked access to the new Outlook app.
• Solution: Contact your IT administrator to request access or explore alternative solutions.

8. Admin-Blocked Personal Accounts:

• Problem: Policies prevent adding personal accounts after adding a work/school account.
• Solution: Check with your IT administrator about the PersonalAccountsEnabled policy.

9. Microsoft 365 MFA Enabled Without Modern Authentication:

• Problem: Multi-factor authentication (MFA) is enabled without modern authentication.
• Solution: Contact your administrator to disable MFA or enable modern authentication in the Microsoft 365 admin center.

10. Outdated Outlook App:

• Problem: An outdated Outlook app causes compatibility issues.

• Solution: Update to the latest version via the Microsoft Store. Ensure automatic updates are enabled. If not, manually check for updates in the Microsoft Store's Library section.

  

11. Corrupt Cache Files:

• Problem: Outdated or corrupted cache files interfere with account setup.
• Solution: Clear the new Outlook cache.

12. Server or Network Problems:

• Problem: Email server, internet connection, or network issues.
• Solution: Check your internet connection, temporarily disable VPN/proxy, and contact your network administrator if necessary.

13. Third-Party Account Addition Issues:

• Problem: Difficulty adding Gmail, Yahoo, etc., due to various factors.
• Solution: Verify settings with your email provider. Consult a tutorial if needed.

By addressing these common issues, you can successfully add your account to the new Outlook app.

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