Gmail Not Syncing Hotmail? Quick Fixes to Restore Email Flow

If you use Gmail to manage your Hotmail emails, you expect everything to work smoothly. But sometimes, emails stop arriving, folders don’t update, or messages you send from Gmail never show up in your Hotmail account. This problem—Gmail not syncing Hotmail—can be confusing and frustrating, especially if you rely on both accounts for important messages.

This article is here to help. Whether you’re a student, business professional, or just someone who needs both Gmail and Hotmail working together, you’ll learn why this syncing issue happens, how to fix it, and what to do if nothing seems to work.

You’ll also see practical examples, easy-to-follow steps, and solutions for both desktop and mobile users.

Let’s dive into why Gmail sometimes stops syncing with Hotmail, and how you can get your emails flowing again.

Why Do People Sync Hotmail With Gmail?

Many people have more than one email account. You may use Hotmail (now part of Outlook.com) for personal contacts and Gmail for work or school. Syncing them means you can read, reply, and manage all your messages in one place.

Here are some common reasons people want to sync:

• Centralized inbox: No need to check multiple email sites.
• Better search: Gmail’s powerful search helps find old Hotmail emails.
• Spam filtering: Gmail’s spam filter can catch unwanted emails from both accounts.
• Productivity: Save time by managing everything in Gmail.

But when syncing stops, you lose these benefits. That’s why solving the problem is important.

How Gmail Syncs With Hotmail

Gmail allows you to add other email accounts, like Hotmail, using POP3 or IMAP. These are two methods for fetching and managing emails from another server.

• POP3 (Post Office Protocol): Downloads emails from Hotmail to Gmail. Usually, messages are removed from Hotmail after downloading, unless you set it to leave a copy.
• IMAP (Internet Message Access Protocol): Syncs messages and folders between Gmail and Hotmail. Changes made in Gmail reflect in Hotmail and vice versa.

Most users add Hotmail to Gmail using POP3, because Gmail’s “Check mail from other accounts” feature uses POP3. IMAP is available only if you use a third-party app (like Outlook or Apple Mail), not the Gmail web interface.

Key insight: If you want real-time, two-way sync (sent folders, drafts, etc.), POP3 is not enough. You need IMAP, but Gmail’s web version does not support IMAP import for external accounts.

Common Causes Of Gmail Not Syncing Hotmail

When Gmail stops syncing with Hotmail, several things might be wrong. Here are the most frequent causes:

• Wrong password or account details: If you change your Hotmail password, Gmail can’t connect.
• Two-factor authentication (2FA): If 2FA is on in Hotmail, Gmail may need an app password.
• Blocked by Microsoft: Too many failed logins can lock your account.
• POP/IMAP not enabled: Hotmail may have POP disabled.
• Gmail’s fetch limit: Gmail checks Hotmail only every few minutes, not instantly.
• Full mailbox: If Hotmail is full, syncing fails.
• Outdated security settings: Gmail or Hotmail may block less secure connections.
• Gmail’s fetch errors: Sometimes Gmail’s servers have issues fetching from Hotmail.

Two less obvious causes are:

• Hotmail account inactivity: If you don’t sign in to Hotmail often, Microsoft may deactivate your account.
• Gmail spam or filter rules: Sometimes, Gmail filters route Hotmail emails to Spam or another folder, making it seem like syncing failed.

Step-by-step Solutions For Gmail Not Syncing Hotmail

Let’s walk through proven steps to fix the syncing problem. Try these in order, and check after each if syncing resumes.

1. Check Your Hotmail Credentials In Gmail

If you changed your Hotmail password, Gmail will fail to fetch emails.

• Go to Gmail Settings (click the gear icon > See all settings).
• Click Accounts and Import.
• Look for the “Check mail from other accounts” section.
• Click edit info next to your Hotmail account.
• Enter the correct password and server settings.

Tip: Double-check your Hotmail username. It’s usually your full email address.

2. Enable Pop In Hotmail

Gmail can’t fetch emails if POP is disabled in Hotmail.

• Sign in to your Hotmail (Outlook.com) account.
• Click the gear icon > View all Outlook settings > Mail > Sync email.
• Under POP and IMAP, make sure Let devices and apps use POP is enabled.

If you want Gmail to leave a copy of messages on Hotmail, check the box for “Don’t allow devices and apps to delete messages from Outlook”.

3. Use An App Password (if 2fa Is Enabled)

If you use two-step verification on Hotmail, Gmail needs a special app password.

• Go to your Microsoft Account Security page.
• Under Additional security options, find App passwords.
• Generate a new app password.
• Use this password in Gmail instead of your main Hotmail password.

Non-obvious insight: Some users forget to update this app password after resetting their main Hotmail password.

4. Update Gmail’s Fetch Settings

Gmail fetches emails from Hotmail at intervals (usually every 15-60 minutes). If you want to check immediately:

• Go to Gmail on desktop.
• On the left, click More > All Mail.
• At the top, click the refresh button.

Or, in Accounts and Import, click Check mail now next to your Hotmail account.

5. Review Gmail’s Spam And Filter Settings

Sometimes, Gmail fetches Hotmail emails but routes them to Spam or a custom folder.

• Search for `in: Anywhere from:your_hotmail_email` in Gmail to find missing emails.
• Check your Spam folder.
• Go to Settings > Filters and Blocked Addresses to review rules.

Pro tip: Some users set up a filter to auto-archive or label Hotmail emails. Check if this is causing emails to “disappear”.

6. Check Hotmail Storage Space

If your Hotmail mailbox is full, Gmail cannot fetch new emails.

• Log into Hotmail.
• Delete large or unneeded emails.
• Empty your Deleted and Junk folders.

Hotmail offers 15 GB of free storage. If you get close to this limit, syncing issues often start.

7. Remove And Re-add Your Hotmail Account In Gmail

If syncing still fails, try removing and re-adding the account.

• In Gmail, go to Accounts and Import.
• Find your Hotmail account and click delete.
• Re-add Hotmail using Add a mail account.
• Enter your Hotmail address, password, and server settings.

Server settings for Hotmail POP3:

• Server: `pop-mail.outlook.com`
• Port: `995`
• Use SSL: Yes

8. Enable “allow Less Secure Apps” (if Needed)

Sometimes, Gmail or Hotmail blocks connections from apps it thinks are insecure.

• In your Microsoft account, go to Security > Advanced security options.
• Find the “Allow apps that use less secure sign-in” option and enable it.

Note: Microsoft is phasing out this setting for security reasons. If you use this, plan to update to more secure methods soon.

9. Check For Account Blocks Or Suspicious Activity

If Microsoft detects suspicious logins, it may block POP connections.

• Log into Hotmail via web browser.
• Check for security warnings or block messages.
• Follow prompts to unblock your account.

You may also get an email from Microsoft warning of blocked sign-in attempts.

10. Check Internet Connection And Browser

Sometimes, the problem is local:

• Make sure your device is connected to the internet.
• Try another browser or clear your current browser’s cache.
• Disable browser extensions that might block Gmail.

11. Try A Different Device Or Network

Test if the syncing issue is related to your device or network.

• Sign into Gmail from another computer or mobile device.
• Use a different Wi-Fi or data connection.

If syncing works elsewhere, your main device or network may be blocking connections.

12. Contact Support

If none of the above work:

• Visit the Google Support and Microsoft Support pages.
• Post in the Gmail or Outlook help forums.
• Provide details: Error messages, steps you tried, when the problem started.

How To Add Hotmail To Gmail The Right Way

If you need to set up syncing from scratch, here’s how to add your Hotmail account to Gmail:

• Open Gmail on your computer.
• Click the gear icon > See all settings.
• Go to Accounts and Import.
• In “Check mail from other accounts,” click Add a mail account.
• Enter your Hotmail email address.
• Choose Import emails from my other account (POP3).
• Enter these settings:
• Username: Your full Hotmail address
• Password: Your Hotmail password (or app password if 2FA is on)
• POP server: `pop-mail.outlook.com`
• Port: `995`
• Check “Always use a secure connection (SSL)”
• Optional: Label incoming messages
• Click Add Account and finish the prompts.

Helpful tip: You can also set up Gmail to send emails as your Hotmail address. In the same section, click “Add another email address” and follow the steps.

Differences Between Pop3 And Imap (what Matters For Syncing)

Understanding the difference between POP3 and IMAP helps set the right expectations.

Non-obvious insight: If you delete a Hotmail message in Gmail (using POP3), it may not be deleted from Hotmail unless you set up Gmail to delete from the server.

Troubleshooting On Mobile Devices

Many users check Gmail and Hotmail on their phones. Here’s what to do if syncing fails on mobile:

• Update your app: Make sure the Gmail app is up to date.
• Remove and re-add Hotmail: In Gmail app settings, remove the Hotmail account and add it again.
• Check permissions: On iPhone or Android, make sure Gmail has the right permissions.
• Check sync settings: In Gmail app > Settings > your Hotmail account, check that “Sync” is enabled.
• Clear app cache: In your phone settings, clear the Gmail app cache and data.

Example: If you use Android and see “Sync is off,” tap your Hotmail account in Gmail and turn on “Sync Gmail.”

What To Do If Emails Are Delayed

Gmail fetches Hotmail emails using POP3, which is not instant. Here’s how long it usually takes:

• Gmail checks for new emails every 15-60 minutes.
• If you get a lot of emails, Gmail may check more often.
• You can force a manual check by clicking “Check mail now.”

If you need faster sync, consider using an email app that supports IMAP for both accounts (like Outlook or Apple Mail).

How To Use Imap For Hotmail And Gmail (advanced)

If you want true two-way sync, use an email client (like Outlook, Thunderbird, or Apple Mail) on your computer or phone.

Set up both Gmail and Hotmail as IMAP accounts. Here’s a quick setup for Hotmail:

• Incoming server: `imap-mail.outlook.com`
• Port: `993`
• Encryption: SSL/TLS
• Username: Your Hotmail address
• Password: Your Hotmail password (or app password)

Do the same for Gmail:

• Incoming server: `imap.gmail.com`
• Port: `993`
• Encryption: SSL/TLS
• Username: Your Gmail address
• Password: Your Gmail password (or app password)

This way, all folders, sent mail, and changes sync across devices.

Comparing Gmail And Hotmail Sync Reliability

How often do these services have sync problems? Here’s what users report:

As you can see, Gmail importing Hotmail is more likely to run into issues than other combinations.

Best Practices For Smooth Gmail-hotmail Sync

To avoid future problems, follow these simple tips:

• Update passwords: Whenever you change your Hotmail password, update it in Gmail settings too.
• Sign into Hotmail regularly: Prevents your account from being deactivated for inactivity.
• Keep both inboxes clean: Delete unwanted emails to stay under the storage limit.
• Check security alerts: Respond to Microsoft or Google warnings quickly.
• Review filters: Make sure Gmail filters aren’t hiding your Hotmail emails.

Alternatives To Gmail-hotmail Sync

If syncing inside Gmail is too slow or unreliable, here are some alternatives:

• Use Outlook.com webmail, which can add Gmail accounts for unified inboxes.
• Use a third-party email client (like Thunderbird or Outlook) with both Gmail and Hotmail via IMAP.
• Forward Hotmail emails to Gmail automatically. In Hotmail, go to Settings > Mail > Forwarding.

Each method has pros and cons. For example, forwarding is instant, but sent mail won’t sync.

When To Consider A Dedicated Email App

If you rely on both Gmail and Hotmail daily, a dedicated email client may be best. These apps offer:

• Real-time sync: Changes appear instantly in both accounts.
• Better folder management: Access all folders and sent items.
• Unified search: Search across both accounts at once.

Popular choices include Microsoft Outlook, Mozilla Thunderbird, and Apple Mail.

Security Considerations

Always keep security in mind when syncing accounts:

• Use strong passwords for both Gmail and Hotmail.
• Enable two-factor authentication on both accounts.
• Never share app passwords with others.
• Watch for phishing emails pretending to be from Google or Microsoft.

For more about secure email practices, check this FTC guide.

If Gmail is not syncing with your Hotmail account, don’t panic. Most issues are caused by incorrect settings, outdated passwords, or changes in security policies. By following the steps above, you can often restore syncing within minutes. For heavy email users, consider using a dedicated email client for reliable, real-time sync.

Remember to keep your accounts secure, review your filters, and check both inboxes regularly for the best experience managing your emails.