Fix Outlook Not Receiving Gmail on Windows

If Outlook on Windows stops receiving Gmail messages, the fix usually involves re-authenticating your Gmail account, adjusting sync settings, or clearing Outlook’s cached credentials. This article walks through the most common causes and step-by-step solutions, from quick checks to deeper repairs.

Why Outlook Stops Receiving Gmail

Outlook can connect to Gmail in two ways: through the free Gmail IMAP access or through a paid Google Workspace account. When emails stop arriving, the problem is almost always one of four things:

• Gmail’s security settings – Google may block Outlook if it considers the sign-in suspicious or if “Less secure app access” is disabled (which Google has largely phased out).
• App password requirements – If you use two-factor authentication, Outlook needs a 16-character app password, not your regular Gmail password.
• IMAP is disabled in Gmail settings – IMAP must be turned on for Outlook to fetch mail.
• Outlook’s cached credentials are stale – Windows Credential Manager may hold an old password that prevents re-authentication.

Quick Checks Before You Dig Deeper

Start with these simple checks—they resolve a surprising number of cases:

1. Open Gmail in a browser and confirm new mail arrives there. If Gmail itself isn’t receiving, the problem is with the sender or Gmail’s servers, not Outlook.
2. Check your internet connection and make sure Outlook isn’t in Offline Mode (bottom-right corner shows “Working Offline”).
3. Restart Outlook completely and wait 30–60 seconds for it to sync.
4. Verify that the account isn’t paused in Outlook’s Send/Receive settings (File > Options > Advanced > Send/Receive).

Re-enter Your Gmail Password in Outlook

The most common fix is to update Outlook with your current Gmail credentials. If you changed your Gmail password recently, Outlook will keep using the old one until you update it.

1. Open Outlook and go to File > Account Settings > Account Settings.
2. Select your Gmail account and click Change.
3. Enter your Gmail address and password (or app password if you use 2FA).
4. Click Next and let Outlook test the connection.

If Outlook doesn’t prompt for a password, you may need to remove the account and re-add it. That forces a fresh authentication with Google.

Enable IMAP in Gmail

Gmail’s IMAP access must be enabled for Outlook to retrieve messages. To check:

1. Log into Gmail in a browser.
2. Click the gear icon > See all settings.
3. Go to the Forwarding and POP/IMAP tab.
4. Under “IMAP access,” select Enable IMAP.
5. Click Save Changes.

IMAP is enabled by default, but it can be turned off accidentally or by a previous configuration. Once enabled, restart Outlook and try sending a test email to yourself.

Create and Use an App Password

If you have two-factor authentication (2FA) enabled on your Google account, Outlook cannot use your regular password. You must generate an app-specific password:

1. Go to your Google Account > Security.
2. Under “Signing in to Google,” select App passwords (you may need to re-enter your password).
3. Choose “Mail” as the app and “Windows Computer” as the device.
4. Google generates a 16-character code. Copy it.
5. In Outlook, replace your Gmail password with this app password when prompted.

App passwords only work if 2FA is on. If you don’t have 2FA, you can skip this step, but Google may still block sign-ins from “less secure apps.” In that case, enable 2FA and use an app password—it’s the most reliable method.

Clear Stored Credentials in Windows

Outlook saves your Gmail password in Windows Credential Manager. If the stored password is wrong or outdated, Outlook will fail to connect silently. To clear it:

1. Open Control Panel > User Accounts > Credential Manager.
2. Click Windows Credentials.
3. Look for entries starting with Microsoft.Office15 or outlook (the number may vary).
4. Expand each entry and click Remove.
5. Restart Outlook and re-enter your password when prompted.

This is especially effective if you recently changed your Gmail password but Outlook still shows “Need Password” or “Disconnected.”

Check Outlook’s Sync Slider and Folder Settings

Outlook has a “sync slider” that limits how much mail it downloads. If it’s set to a short period (e.g., 1 month), older emails may appear missing, but new ones should still arrive. However, if the slider is set to “All” and the mailbox is huge, sync can stall.

1. Go to File > Account Settings > Account Settings.
2. Select the Gmail account and click Change.
3. Click More Settings > Advanced tab.
4. Check the “Mail to keep offline” slider. Set it to All or a period that suits you.
5. Also verify that IMAP folders are subscribed. In Outlook, right-click the Gmail account > IMAP Folders > ensure Inbox is subscribed.

If you’re only missing new emails, the sync slider isn’t the culprit—it only affects how far back Outlook goes.

Repair Your Outlook Data File

Corrupted Outlook data files can cause sync failures. Outlook includes a repair tool:

1. Close Outlook.
2. Open Control Panel > Mail (search for “Mail” if you don’t see it).
3. Click Data Files.
4. Select your Gmail account’s data file (usually a .ost file) and click Open File Location to note the path.
5. Close that window, then run scanpst.exe (Inbox Repair Tool) found in your Office installation folder (e.g., C:\Program Files\Microsoft Office\root\Office16).
6. Point it to the .ost file and let it scan and repair.

This is a last resort—it can take a while and may not fix all issues, but it’s worth trying before reinstalling Office.

Frequently Asked Questions

Why is Outlook not receiving Gmail but can send?

If sending works but receiving doesn’t, the issue is usually with incoming server settings. Check that IMAP is enabled in Gmail and that Outlook’s incoming server is set to imap.gmail.com on port 993 with SSL. Also verify that the account isn’t set to “Do not download new items” in the send/receive settings.

How do I know if Gmail is blocking Outlook?

Google usually sends a security alert email to your Gmail address when it blocks a sign-in attempt. Check your Gmail inbox (or spam) for a message titled “Google blocked someone from signing into your account.” If you see that, follow the prompt to allow the access, or use an app password.

Will I lose my emails if I remove the Gmail account from Outlook?

No. Removing the account from Outlook only deletes the local copy (cache). Your emails remain on Gmail’s servers. When you re-add the account, Outlook will download them again (subject to your sync slider settings).

Does Outlook for Windows support Gmail natively?

Yes. Outlook supports Gmail via IMAP, and you can also add it as a Microsoft 365 account if you use Gmail with a custom domain through Google Workspace. The new Outlook for Windows (the free version) has a dedicated Gmail connector, but the classic desktop app uses IMAP.

Why does Outlook keep asking for my Gmail password?

This usually means your stored credentials are invalid or Google is rejecting them. If you have 2FA, you must use an app password. If not, re-enter your current Gmail password. Also check that your system clock is correct—time sync issues can cause authentication failures.

Can I use Gmail’s “Less secure app access” instead of an app password?

Google has disabled that option for most accounts. The recommended path is to enable 2FA and generate an app password. If you don’t want 2FA, you can try enabling IMAP and using your regular password, but Google may still block it. The app password method is the most reliable.

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