error (0x800CCC0E) : 'Outlook cannot synchronize subscribed folders for @gmail.com. Error:

Question

Task 'Synchronizing subscribed folders for @gmail.com.' reported error (0x800CCC0E) : 'Outlook cannot synchronize subscribed folders for @gmail.com. Error: Cannot connect to the server. If you continue to receive this message, contact your server administrator or Internet service provider (ISP).'

Answer 1

Hello Sunnykarl,

Good day!Thank you for reaching out to the Microsoft Community!

I see you're encountering the error 0x800CCC0E in Outlook, specifically related to synchronizing subscribed folders for your Gmail account. This error typically indicates that Outlook is unable to connect to the mail server, which can happen for several reasons.

Let’s walk through some steps that may help resolve this issue:

You're receiving the following error message:

"Outlook cannot synchronize subscribed folders for @gmail.com. Error: Cannot connect to the server. If you continue to receive this message, contact your server administrator or Internet service provider (ISP)."

This suggests that Outlook is having trouble syncing Gmail folders due to a connection issue.

To help you troubleshoot this issue effectively, I’ve compiled a list of potential solutions and workarounds:

Check Your Internet Connection:

• First, ensure that your internet connection is stable and active. A poor or intermittent connection can sometimes cause Outlook to fail to sync with the mail server.
• Test your internet connection by opening a web browser and loading some websites. If you're using a VPN, try disconnecting it to see if that resolves the issue.

Verify Gmail IMAP Settings in Outlook:

• The error could be related to incorrect IMAP settings for your Gmail account in Outlook. If IMAP is disabled in Gmail, Outlook won’t be able to synchronize the folders.
• Check that IMAP is enabled in your Gmail settings:
  1. Go to your Gmail account in a web browser.
  2. Click on the gear icon in the upper-right corner and select See all settings.
  3. Go to the Forwarding and POP/IMAP tab.
  4. Ensure that IMAP access is enabled (select Enable IMAP).
  5. Save your settings.

Update Your Gmail Account Settings in Outlook:

Make sure that your Gmail account in Outlook is configured correctly with the proper server settings.

• IMAP settings for Gmail:
  • Incoming mail server (IMAP): imap.gmail.com (Port 993, SSL)
  • Outgoing mail server (SMTP): smtp.gmail.com (Port 465 or 587, TLS/SSL)
• Ensure your email address and password are entered correctly in the account settings.

Use App Passwords (If Two-Factor Authentication is Enabled)

• Create an App Password:
  • Go to your Google Account settings.
  • Navigate to Security > Signing in to Google > App passwords.
  • Select "Mail" as the app and "Windows Computer" as the device, then click "Generate."
• Update Outlook with App Password:
  • In Outlook, go back to File > Account Settings > Account Settings.
  • Select your Gmail account, click "Change," and replace your regular password with the generated App Password.

Remove and Re-add Your Gmail Account in Outlook:

Sometimes, re-adding the account in Outlook can help resolve sync issues.

• Steps to remove and re-add your Gmail account:
  1. In Outlook, go to File > Account Settings > Account Settings.
  2. Select your Gmail account and click Remove.
  3. After removing the account, click New and follow the prompts to re-add your Gmail account.
  4. Once the account is added again, verify that IMAP is syncing correctly.

Clear Outlook’s Offline Cache:

The issue may also be related to Outlook’s offline cache, which can sometimes become corrupted.

• To clear the offline cache:
  1. Go to File > Account Settings > Account Settings.
  2. Select your Gmail account, then click on Change.
  3. Click More Settings > Advanced tab.
  4. Under Cached Exchange Mode Settings, uncheck Use Cached Exchange Mode.
  5. Click OK, close Outlook, and then reopen it.
  6. If this resolves the issue, you can turn Cached Exchange Mode back on after syncing finishes.

Check for Firewall or Antivirus Blocking Outlook:

Some security software (firewall or antivirus) can block Outlook from connecting to Gmail’s mail servers.

• Temporarily disable any third-party firewall or antivirus software and check if Outlook can synchronize your Gmail folders.
• If disabling security software resolves the issue, check its settings to ensure that Outlook has the necessary permissions to connect to the internet.

Ensure No Server-Side Issues with Gmail:

It’s also worth checking whether Gmail’s servers are experiencing any outages or disruptions.

• Visit the Google Workspace Status Dashboard to check if there are any reported issues with Gmail’s IMAP servers.
• If there is a service disruption, you may need to wait for Google to resolve the issue.

Check for Outlook Updates:

An outdated version of Outlook may cause issues with syncing. Ensure that Outlook is fully updated to take advantage of bug fixes and performance improvements.

• In Outlook, go to File > Office Account > Update Options > Update Now to ensure you're using the latest version of Outlook.

Run Outlook's Repair Tool:

Outlook has a built-in repair tool that can fix issues related to synchronization.A

• Go to Control Panel > Programs > Programs and Features.
• Select Microsoft Office (or Outlook), then click Change.
• Select Quick Repair or Online Repair (Online Repair is more thorough but may take longer).
• Follow the on-screen prompts and restart Outlook once the repair is complete.

Create a New Outlook Profile

• Open Control Panel:
  • Go to Control Panel > Mail (or Mail (32-bit)).
• Manage Profiles:
  • Click on "Show Profiles."
  • Click "Add" to create a new profile. Name it something like "Gmail Profile."
• Set Up Your Gmail Account:
  • Follow the prompts to add your Gmail account using the same IMAP settings as before.
• Set as Default Profile: After creating the new profile, set it as the default by selecting it and clicking "Always use this profile."

Reset Offline Folders

• Open Account Settings:
  • Go to File > Account Settings > Account Settings again.
• Select Your Gmail Account:
  • Click on your Gmail account, then click on "Change."
• More Settings:
  • Click on "More Settings," then go to the Advanced tab.
• Reset Offline Folders:
  • Look for an option that says “Reset Offline Folders” or similar, depending on your version of Outlook. Confirm any prompts.

Increase Server Timeout Setting

• Open More Settings:
  • In the same window where you checked IMAP settings (File > Account Settings > Change), click on "More Settings."
• Adjust Timeout Setting:
  • Go to the Advanced tab.
  • Find the “Server Timeouts” slider and increase it to a higher value (e.g., move it to about five minutes).

I hope these steps help resolve the issue with Gmail synchronization in Outlook. If you continue to experience problems, please let me know which step you’ve tried, and I’d be happy to assist further!

Please understand that our initial response may not always resolve the issue immediately. However, with your help and more detailed information, we can work together to find a solution.

Appreciate your patience and understanding and thank you for your time and cooperation. Have a great day!

Let me know how it goes! Thank you for being part of the Microsoft Community.

Sincerely,

Microsoft Community Moderator

Answer 2

Did all of these and still not working. Whatelse can I do?

Answer 3

Ken, thank you for your help. Many of your suggestions we already tried yesterday.

Couple of things I could not do, because did not find where they suppose to be:

1) Clear Outlook’s Offline Cache:

2) Reset Offline Folders

3) Increase Server Timeout Setting

If you think these are significant, let me know how to find these settings.

Thanks, Yefim